Home / 99,677,921.80-149,516,882.70-65,637,704.20

Finding the Fourth Proportional to 99,677,921.80, 149,516,882.70 and 65,637,704.20

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Solution

The fourth proportional to 99,677,921.80, 149,516,882.70 and 65,637,704.20 is: 98,456,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,677,921.80 : 149,516,882.70 = 65,637,704.20 : x
  2. Step 2: Convert to fraction form
    99,677,921.80/149,516,882.70 = 65,637,704.20/x
  3. Step 3: Cross multiply
    99,677,921.80x = 149,516,882.70 × 65,637,704.20
  4. Step 4: Simplify right side
    99,677,921.80x = 9,813,944,919,568,698
  5. Step 5: Solve for x
    x = 9,813,944,919,568,698/99,677,921.80
  6. Step 6: Final answer
    x = 98,456,556.30

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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.