Home / 727,466,764.81-1,003,904,538.25-392,939,285.73

Finding the Fourth Proportional to 727,466,764.81, 1,003,904,538.25 and 392,939,285.73

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Solution

The fourth proportional to 727,466,764.81, 1,003,904,538.25 and 392,939,285.73 is: 542,256,431.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,466,764.81 : 1,003,904,538.25 = 392,939,285.73 : x
  2. Step 2: Convert to fraction form
    727,466,764.81/1,003,904,538.25 = 392,939,285.73/x
  3. Step 3: Cross multiply
    727,466,764.81x = 1,003,904,538.25 × 392,939,285.73
  4. Step 4: Simplify right side
    727,466,764.81x = 394,473,532,200,078,144
  5. Step 5: Solve for x
    x = 394,473,532,200,078,144/727,466,764.81
  6. Step 6: Final answer
    x = 542,256,431.89

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Why These Related Problems?

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