Home / 1,090,152,003.20-1,635,228,004.80-630,986,979.20

Finding the Fourth Proportional to 1,090,152,003.20, 1,635,228,004.80 and 630,986,979.20

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Solution

The fourth proportional to 1,090,152,003.20, 1,635,228,004.80 and 630,986,979.20 is: 946,480,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,152,003.20 : 1,635,228,004.80 = 630,986,979.20 : x
  2. Step 2: Convert to fraction form
    1,090,152,003.20/1,635,228,004.80 = 630,986,979.20/x
  3. Step 3: Cross multiply
    1,090,152,003.20x = 1,635,228,004.80 × 630,986,979.20
  4. Step 4: Simplify right side
    1,090,152,003.20x = 1,031,807,579,051,995,136
  5. Step 5: Solve for x
    x = 1,031,807,579,051,995,136/1,090,152,003.20
  6. Step 6: Final answer
    x = 946,480,468.80

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Half scale
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Double scale
Find fourth proportional to 1,090,152,004.20, 1,635,228,006.30 and 630,986,980.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.