Home / 148,947,879.53-205,549,956.19-81,974,546.27

Finding the Fourth Proportional to 148,947,879.53, 205,549,956.19 and 81,974,546.27

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Solution

The fourth proportional to 148,947,879.53, 205,549,956.19 and 81,974,546.27 is: 113,125,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,947,879.53 : 205,549,956.19 = 81,974,546.27 : x
  2. Step 2: Convert to fraction form
    148,947,879.53/205,549,956.19 = 81,974,546.27/x
  3. Step 3: Cross multiply
    148,947,879.53x = 205,549,956.19 × 81,974,546.27
  4. Step 4: Simplify right side
    148,947,879.53x = 16,849,864,394,493,626
  5. Step 5: Solve for x
    x = 16,849,864,394,493,626/148,947,879.53
  6. Step 6: Final answer
    x = 113,125,909.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.