Home / 20,104,251.10-30,156,376.65-12,451,500.70

Finding the Fourth Proportional to 20,104,251.10, 30,156,376.65 and 12,451,500.70

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Solution

The fourth proportional to 20,104,251.10, 30,156,376.65 and 12,451,500.70 is: 18,677,251.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104,251.10 : 30,156,376.65 = 12,451,500.70 : x
  2. Step 2: Convert to fraction form
    20,104,251.10/30,156,376.65 = 12,451,500.70/x
  3. Step 3: Cross multiply
    20,104,251.10x = 30,156,376.65 × 12,451,500.70
  4. Step 4: Simplify right side
    20,104,251.10x = 375,492,144,966,938.62
  5. Step 5: Solve for x
    x = 375,492,144,966,938.62/20,104,251.10
  6. Step 6: Final answer
    x = 18,677,251.05

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1.5x scale

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.