Home / 788,531,489.20-1,182,797,233.80-663,695,998.30

Finding the Fourth Proportional to 788,531,489.20, 1,182,797,233.80 and 663,695,998.30

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Solution

The fourth proportional to 788,531,489.20, 1,182,797,233.80 and 663,695,998.30 is: 995,543,997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,531,489.20 : 1,182,797,233.80 = 663,695,998.30 : x
  2. Step 2: Convert to fraction form
    788,531,489.20/1,182,797,233.80 = 663,695,998.30/x
  3. Step 3: Cross multiply
    788,531,489.20x = 1,182,797,233.80 × 663,695,998.30
  4. Step 4: Simplify right side
    788,531,489.20x = 785,017,790,873,369,472
  5. Step 5: Solve for x
    x = 785,017,790,873,369,472/788,531,489.20
  6. Step 6: Final answer
    x = 995,543,997.45

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Half scale
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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.