Home / 1,181,944,985.40-1,772,917,478.10-363,950,998.20

Finding the Fourth Proportional to 1,181,944,985.40, 1,772,917,478.10 and 363,950,998.20

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Solution

The fourth proportional to 1,181,944,985.40, 1,772,917,478.10 and 363,950,998.20 is: 545,926,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,944,985.40 : 1,772,917,478.10 = 363,950,998.20 : x
  2. Step 2: Convert to fraction form
    1,181,944,985.40/1,772,917,478.10 = 363,950,998.20/x
  3. Step 3: Cross multiply
    1,181,944,985.40x = 1,772,917,478.10 × 363,950,998.20
  4. Step 4: Simplify right side
    1,181,944,985.40x = 645,255,085,880,721,536
  5. Step 5: Solve for x
    x = 645,255,085,880,721,536/1,181,944,985.40
  6. Step 6: Final answer
    x = 545,926,497.30

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Half scale
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Double scale
Find fourth proportional to 1,181,944,986.40, 1,772,917,479.60 and 363,950,999.20
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.