Home / 129,402,404.62-178,598,384.13-76,476,951.16

Finding the Fourth Proportional to 129,402,404.62, 178,598,384.13 and 76,476,951.16

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Solution

The fourth proportional to 129,402,404.62, 178,598,384.13 and 76,476,951.16 is: 105,551,824.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,402,404.62 : 178,598,384.13 = 76,476,951.16 : x
  2. Step 2: Convert to fraction form
    129,402,404.62/178,598,384.13 = 76,476,951.16/x
  3. Step 3: Cross multiply
    129,402,404.62x = 178,598,384.13 × 76,476,951.16
  4. Step 4: Simplify right side
    129,402,404.62x = 13,658,659,900,364,928
  5. Step 5: Solve for x
    x = 13,658,659,900,364,928/129,402,404.62
  6. Step 6: Final answer
    x = 105,551,824.48

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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.