Home / 256,493,114.70-384,739,672.05-74,746,221.90

Finding the Fourth Proportional to 256,493,114.70, 384,739,672.05 and 74,746,221.90

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Solution

The fourth proportional to 256,493,114.70, 384,739,672.05 and 74,746,221.90 is: 112,119,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,493,114.70 : 384,739,672.05 = 74,746,221.90 : x
  2. Step 2: Convert to fraction form
    256,493,114.70/384,739,672.05 = 74,746,221.90/x
  3. Step 3: Cross multiply
    256,493,114.70x = 384,739,672.05 × 74,746,221.90
  4. Step 4: Simplify right side
    256,493,114.70x = 28,757,836,900,782,532
  5. Step 5: Solve for x
    x = 28,757,836,900,782,532/256,493,114.70
  6. Step 6: Final answer
    x = 112,119,332.85

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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.