Home / 66,597,373.05-99,894,958.11-19,910,967.72

Finding the Fourth Proportional to 66,597,373.05, 99,894,958.11 and 19,910,967.72

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Solution

The fourth proportional to 66,597,373.05, 99,894,958.11 and 19,910,967.72 is: 29,866,122.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,597,373.05 : 99,894,958.11 = 19,910,967.72 : x
  2. Step 2: Convert to fraction form
    66,597,373.05/99,894,958.11 = 19,910,967.72/x
  3. Step 3: Cross multiply
    66,597,373.05x = 99,894,958.11 × 19,910,967.72
  4. Step 4: Simplify right side
    66,597,373.05x = 1,989,005,286,318,962
  5. Step 5: Solve for x
    x = 1,989,005,286,318,962/66,597,373.05
  6. Step 6: Final answer
    x = 29,866,122.27

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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.