Home / 99,660,421.70-149,490,632.55-58,677,791.30

Finding the Fourth Proportional to 99,660,421.70, 149,490,632.55 and 58,677,791.30

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Solution

The fourth proportional to 99,660,421.70, 149,490,632.55 and 58,677,791.30 is: 88,016,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,660,421.70 : 149,490,632.55 = 58,677,791.30 : x
  2. Step 2: Convert to fraction form
    99,660,421.70/149,490,632.55 = 58,677,791.30/x
  3. Step 3: Cross multiply
    99,660,421.70x = 149,490,632.55 × 58,677,791.30
  4. Step 4: Simplify right side
    99,660,421.70x = 8,771,780,138,073,887
  5. Step 5: Solve for x
    x = 8,771,780,138,073,887/99,660,421.70
  6. Step 6: Final answer
    x = 88,016,686.95

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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.