Home / 391,453,655.52-587,167,184.68-100,323,636.96

Finding the Fourth Proportional to 391,453,655.52, 587,167,184.68 and 100,323,636.96

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Solution

The fourth proportional to 391,453,655.52, 587,167,184.68 and 100,323,636.96 is: 150,482,047.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,453,655.52 : 587,167,184.68 = 100,323,636.96 : x
  2. Step 2: Convert to fraction form
    391,453,655.52/587,167,184.68 = 100,323,636.96/x
  3. Step 3: Cross multiply
    391,453,655.52x = 587,167,184.68 × 100,323,636.96
  4. Step 4: Simplify right side
    391,453,655.52x = 58,906,747,470,661,584
  5. Step 5: Solve for x
    x = 58,906,747,470,661,584/391,453,655.52
  6. Step 6: Final answer
    x = 150,482,047.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.