Home / 781,469,414.47-1,078,458,119.58-429,060,258.55

Finding the Fourth Proportional to 781,469,414.47, 1,078,458,119.58 and 429,060,258.55

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Solution

The fourth proportional to 781,469,414.47, 1,078,458,119.58 and 429,060,258.55 is: 592,119,807.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,469,414.47 : 1,078,458,119.58 = 429,060,258.55 : x
  2. Step 2: Convert to fraction form
    781,469,414.47/1,078,458,119.58 = 429,060,258.55/x
  3. Step 3: Cross multiply
    781,469,414.47x = 1,078,458,119.58 × 429,060,258.55
  4. Step 4: Simplify right side
    781,469,414.47x = 462,723,519,622,341,568
  5. Step 5: Solve for x
    x = 462,723,519,622,341,568/781,469,414.47
  6. Step 6: Final answer
    x = 592,119,807.96

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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.