Home / 127,746,142.08-176,289,502.86-72,741,998.58

Finding the Fourth Proportional to 127,746,142.08, 176,289,502.86 and 72,741,998.58

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Solution

The fourth proportional to 127,746,142.08, 176,289,502.86 and 72,741,998.58 is: 100,383,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,746,142.08 : 176,289,502.86 = 72,741,998.58 : x
  2. Step 2: Convert to fraction form
    127,746,142.08/176,289,502.86 = 72,741,998.58/x
  3. Step 3: Cross multiply
    127,746,142.08x = 176,289,502.86 × 72,741,998.58
  4. Step 4: Simplify right side
    127,746,142.08x = 12,823,650,766,711,026
  5. Step 5: Solve for x
    x = 12,823,650,766,711,026/127,746,142.08
  6. Step 6: Final answer
    x = 100,383,859.41

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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.