Home / 128,304,084.60-192,288,165.30-51,564,295.80

Finding the Fourth Proportional to 128,304,084.60, 192,288,165.30 and 51,564,295.80

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Solution

The fourth proportional to 128,304,084.60, 192,288,165.30 and 51,564,295.80 is: 77,278,941.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,084.60 : 192,288,165.30 = 51,564,295.80 : x
  2. Step 2: Convert to fraction form
    128,304,084.60/192,288,165.30 = 51,564,295.80/x
  3. Step 3: Cross multiply
    128,304,084.60x = 192,288,165.30 × 51,564,295.80
  4. Step 4: Simplify right side
    128,304,084.60x = 9,915,203,834,368,496
  5. Step 5: Solve for x
    x = 9,915,203,834,368,496/128,304,084.60
  6. Step 6: Final answer
    x = 77,278,941.39

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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.