Home / 122,474,711.40-183,712,067.10-83,675,581.80

Finding the Fourth Proportional to 122,474,711.40, 183,712,067.10 and 83,675,581.80

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Solution

The fourth proportional to 122,474,711.40, 183,712,067.10 and 83,675,581.80 is: 125,513,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,474,711.40 : 183,712,067.10 = 83,675,581.80 : x
  2. Step 2: Convert to fraction form
    122,474,711.40/183,712,067.10 = 83,675,581.80/x
  3. Step 3: Cross multiply
    122,474,711.40x = 183,712,067.10 × 83,675,581.80
  4. Step 4: Simplify right side
    122,474,711.40x = 15,372,214,098,273,138
  5. Step 5: Solve for x
    x = 15,372,214,098,273,138/122,474,711.40
  6. Step 6: Final answer
    x = 125,513,372.70

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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.