Home / 117,157,082.55-161,676,770.40-64,945,985.91

Finding the Fourth Proportional to 117,157,082.55, 161,676,770.40 and 64,945,985.91

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Solution

The fourth proportional to 117,157,082.55, 161,676,770.40 and 64,945,985.91 is: 89,625,458.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,157,082.55 : 161,676,770.40 = 64,945,985.91 : x
  2. Step 2: Convert to fraction form
    117,157,082.55/161,676,770.40 = 64,945,985.91/x
  3. Step 3: Cross multiply
    117,157,082.55x = 161,676,770.40 × 64,945,985.91
  4. Step 4: Simplify right side
    117,157,082.55x = 10,500,257,252,372,704
  5. Step 5: Solve for x
    x = 10,500,257,252,372,704/117,157,082.55
  6. Step 6: Final answer
    x = 89,625,458.61

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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.