Home / 256,810,708.50-385,135,143.72-84,247,310.58

Finding the Fourth Proportional to 256,810,708.50, 385,135,143.72 and 84,247,310.58

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Solution

The fourth proportional to 256,810,708.50, 385,135,143.72 and 84,247,310.58 is: 126,344,420.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,810,708.50 : 385,135,143.72 = 84,247,310.58 : x
  2. Step 2: Convert to fraction form
    256,810,708.50/385,135,143.72 = 84,247,310.58/x
  3. Step 3: Cross multiply
    256,810,708.50x = 385,135,143.72 × 84,247,310.58
  4. Step 4: Simplify right side
    256,810,708.50x = 32,446,600,068,251,780
  5. Step 5: Solve for x
    x = 32,446,600,068,251,780/256,810,708.50
  6. Step 6: Final answer
    x = 126,344,420.21

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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.