Home / 128,457,366.28-177,271,331.46-69,720,024.71

Finding the Fourth Proportional to 128,457,366.28, 177,271,331.46 and 69,720,024.71

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Solution

The fourth proportional to 128,457,366.28, 177,271,331.46 and 69,720,024.71 is: 96,213,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,457,366.28 : 177,271,331.46 = 69,720,024.71 : x
  2. Step 2: Convert to fraction form
    128,457,366.28/177,271,331.46 = 69,720,024.71/x
  3. Step 3: Cross multiply
    128,457,366.28x = 177,271,331.46 × 69,720,024.71
  4. Step 4: Simplify right side
    128,457,366.28x = 12,359,361,609,947,530
  5. Step 5: Solve for x
    x = 12,359,361,609,947,530/128,457,366.28
  6. Step 6: Final answer
    x = 96,213,724.20

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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.