Home / 930,393,757.76-1,283,951,876.80-512,721,029.12

Finding the Fourth Proportional to 930,393,757.76, 1,283,951,876.80 and 512,721,029.12

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Solution

The fourth proportional to 930,393,757.76, 1,283,951,876.80 and 512,721,029.12 is: 707,559,699.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,393,757.76 : 1,283,951,876.80 = 512,721,029.12 : x
  2. Step 2: Convert to fraction form
    930,393,757.76/1,283,951,876.80 = 512,721,029.12/x
  3. Step 3: Cross multiply
    930,393,757.76x = 1,283,951,876.80 × 512,721,029.12
  4. Step 4: Simplify right side
    930,393,757.76x = 658,309,127,613,451,392
  5. Step 5: Solve for x
    x = 658,309,127,613,451,392/930,393,757.76
  6. Step 6: Final answer
    x = 707,559,699.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.