Home / 521,602,214.40-782,403,321.60-158,049,331.20

Finding the Fourth Proportional to 521,602,214.40, 782,403,321.60 and 158,049,331.20

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Solution

The fourth proportional to 521,602,214.40, 782,403,321.60 and 158,049,331.20 is: 237,073,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,602,214.40 : 782,403,321.60 = 158,049,331.20 : x
  2. Step 2: Convert to fraction form
    521,602,214.40/782,403,321.60 = 158,049,331.20/x
  3. Step 3: Cross multiply
    521,602,214.40x = 782,403,321.60 × 158,049,331.20
  4. Step 4: Simplify right side
    521,602,214.40x = 123,658,321,707,538,512
  5. Step 5: Solve for x
    x = 123,658,321,707,538,512/521,602,214.40
  6. Step 6: Final answer
    x = 237,073,996.80

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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.