Home / 80,096,428-120,156,631.64-28,990,404.08

Finding the Fourth Proportional to 80,096,428, 120,156,631.64 and 28,990,404.08

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Solution

The fourth proportional to 80,096,428, 120,156,631.64 and 28,990,404.08 is: 43,489,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,096,428 : 120,156,631.64 = 28,990,404.08 : x
  2. Step 2: Convert to fraction form
    80,096,428/120,156,631.64 = 28,990,404.08/x
  3. Step 3: Cross multiply
    80,096,428x = 120,156,631.64 × 28,990,404.08
  4. Step 4: Simplify right side
    80,096,428x = 3,483,389,304,135,313
  5. Step 5: Solve for x
    x = 3,483,389,304,135,313/80,096,428
  6. Step 6: Final answer
    x = 43,489,945.70

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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.