Home / 72,771,163.10-109,156,744.65-21,646,538.90

Finding the Fourth Proportional to 72,771,163.10, 109,156,744.65 and 21,646,538.90

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Solution

The fourth proportional to 72,771,163.10, 109,156,744.65 and 21,646,538.90 is: 32,469,808.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,771,163.10 : 109,156,744.65 = 21,646,538.90 : x
  2. Step 2: Convert to fraction form
    72,771,163.10/109,156,744.65 = 21,646,538.90/x
  3. Step 3: Cross multiply
    72,771,163.10x = 109,156,744.65 × 21,646,538.90
  4. Step 4: Simplify right side
    72,771,163.10x = 2,362,865,719,263,592
  5. Step 5: Solve for x
    x = 2,362,865,719,263,592/72,771,163.10
  6. Step 6: Final answer
    x = 32,469,808.35

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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.