Home / 857,088,000.70-1,285,632,001.05-448,269,466.30

Finding the Fourth Proportional to 857,088,000.70, 1,285,632,001.05 and 448,269,466.30

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Solution

The fourth proportional to 857,088,000.70, 1,285,632,001.05 and 448,269,466.30 is: 672,404,199.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,088,000.70 : 1,285,632,001.05 = 448,269,466.30 : x
  2. Step 2: Convert to fraction form
    857,088,000.70/1,285,632,001.05 = 448,269,466.30/x
  3. Step 3: Cross multiply
    857,088,000.70x = 1,285,632,001.05 × 448,269,466.30
  4. Step 4: Simplify right side
    857,088,000.70x = 576,309,570,968,884,544
  5. Step 5: Solve for x
    x = 576,309,570,968,884,544/857,088,000.70
  6. Step 6: Final answer
    x = 672,404,199.45

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Double scale
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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.