Home / 71,206,644.80-106,827,463.20-20,087,998.40

Finding the Fourth Proportional to 71,206,644.80, 106,827,463.20 and 20,087,998.40

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Solution

The fourth proportional to 71,206,644.80, 106,827,463.20 and 20,087,998.40 is: 30,136,933.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,206,644.80 : 106,827,463.20 = 20,087,998.40 : x
  2. Step 2: Convert to fraction form
    71,206,644.80/106,827,463.20 = 20,087,998.40/x
  3. Step 3: Cross multiply
    71,206,644.80x = 106,827,463.20 × 20,087,998.40
  4. Step 4: Simplify right side
    71,206,644.80x = 2,145,949,909,837,658.75
  5. Step 5: Solve for x
    x = 2,145,949,909,837,658.75/71,206,644.80
  6. Step 6: Final answer
    x = 30,136,933.37

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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.