Home / 99,008,989.20-136,630,288.08-54,953,419.68

Finding the Fourth Proportional to 99,008,989.20, 136,630,288.08 and 54,953,419.68

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Solution

The fourth proportional to 99,008,989.20, 136,630,288.08 and 54,953,419.68 is: 75,834,544.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,008,989.20 : 136,630,288.08 = 54,953,419.68 : x
  2. Step 2: Convert to fraction form
    99,008,989.20/136,630,288.08 = 54,953,419.68/x
  3. Step 3: Cross multiply
    99,008,989.20x = 136,630,288.08 × 54,953,419.68
  4. Step 4: Simplify right side
    99,008,989.20x = 7,508,301,561,859,542
  5. Step 5: Solve for x
    x = 7,508,301,561,859,542/99,008,989.20
  6. Step 6: Final answer
    x = 75,834,544.14

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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.