Home / 727,466,764.43-1,003,904,537.73-392,939,285.36

Finding the Fourth Proportional to 727,466,764.43, 1,003,904,537.73 and 392,939,285.36

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Solution

The fourth proportional to 727,466,764.43, 1,003,904,537.73 and 392,939,285.36 is: 542,256,431.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,466,764.43 : 1,003,904,537.73 = 392,939,285.36 : x
  2. Step 2: Convert to fraction form
    727,466,764.43/1,003,904,537.73 = 392,939,285.36/x
  3. Step 3: Cross multiply
    727,466,764.43x = 1,003,904,537.73 × 392,939,285.36
  4. Step 4: Simplify right side
    727,466,764.43x = 394,473,531,620,267,840
  5. Step 5: Solve for x
    x = 394,473,531,620,267,840/727,466,764.43
  6. Step 6: Final answer
    x = 542,256,431.37

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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.