Home / 128,750,437.29-177,680,275.89-73,756,922.61

Finding the Fourth Proportional to 128,750,437.29, 177,680,275.89 and 73,756,922.61

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Solution

The fourth proportional to 128,750,437.29, 177,680,275.89 and 73,756,922.61 is: 101,787,229.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,750,437.29 : 177,680,275.89 = 73,756,922.61 : x
  2. Step 2: Convert to fraction form
    128,750,437.29/177,680,275.89 = 73,756,922.61/x
  3. Step 3: Cross multiply
    128,750,437.29x = 177,680,275.89 × 73,756,922.61
  4. Step 4: Simplify right side
    128,750,437.29x = 13,105,150,358,142,178
  5. Step 5: Solve for x
    x = 13,105,150,358,142,178/128,750,437.29
  6. Step 6: Final answer
    x = 101,787,229.88

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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.