Home / 145,152,005.40-217,728,008.10-83,930,002.20

Finding the Fourth Proportional to 145,152,005.40, 217,728,008.10 and 83,930,002.20

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Solution

The fourth proportional to 145,152,005.40, 217,728,008.10 and 83,930,002.20 is: 125,895,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,152,005.40 : 217,728,008.10 = 83,930,002.20 : x
  2. Step 2: Convert to fraction form
    145,152,005.40/217,728,008.10 = 83,930,002.20/x
  3. Step 3: Cross multiply
    145,152,005.40x = 217,728,008.10 × 83,930,002.20
  4. Step 4: Simplify right side
    145,152,005.40x = 18,273,912,198,834,616
  5. Step 5: Solve for x
    x = 18,273,912,198,834,616/145,152,005.40
  6. Step 6: Final answer
    x = 125,895,003.30

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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.