Home / 71,745,166.17-99,011,469.08-40,385,238.57

Finding the Fourth Proportional to 71,745,166.17, 99,011,469.08 and 40,385,238.57

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Solution

The fourth proportional to 71,745,166.17, 99,011,469.08 and 40,385,238.57 is: 55,733,396.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,745,166.17 : 99,011,469.08 = 40,385,238.57 : x
  2. Step 2: Convert to fraction form
    71,745,166.17/99,011,469.08 = 40,385,238.57/x
  3. Step 3: Cross multiply
    71,745,166.17x = 99,011,469.08 × 40,385,238.57
  4. Step 4: Simplify right side
    71,745,166.17x = 3,998,601,799,961,978.50
  5. Step 5: Solve for x
    x = 3,998,601,799,961,978.50/71,745,166.17
  6. Step 6: Final answer
    x = 55,733,396.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.