Home / 727,466,763.68-1,003,904,536.69-392,939,284.60

Finding the Fourth Proportional to 727,466,763.68, 1,003,904,536.69 and 392,939,284.60

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Solution

The fourth proportional to 727,466,763.68, 1,003,904,536.69 and 392,939,284.60 is: 542,256,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,466,763.68 : 1,003,904,536.69 = 392,939,284.60 : x
  2. Step 2: Convert to fraction form
    727,466,763.68/1,003,904,536.69 = 392,939,284.60/x
  3. Step 3: Cross multiply
    727,466,763.68x = 1,003,904,536.69 × 392,939,284.60
  4. Step 4: Simplify right side
    727,466,763.68x = 394,473,530,455,428,736
  5. Step 5: Solve for x
    x = 394,473,530,455,428,736/727,466,763.68
  6. Step 6: Final answer
    x = 542,256,430.33

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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.