Home / 95,121,411.40-142,682,117.10-78,979,601.80

Finding the Fourth Proportional to 95,121,411.40, 142,682,117.10 and 78,979,601.80

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Solution

The fourth proportional to 95,121,411.40, 142,682,117.10 and 78,979,601.80 is: 118,469,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,121,411.40 : 142,682,117.10 = 78,979,601.80 : x
  2. Step 2: Convert to fraction form
    95,121,411.40/142,682,117.10 = 78,979,601.80/x
  3. Step 3: Cross multiply
    95,121,411.40x = 142,682,117.10 × 78,979,601.80
  4. Step 4: Simplify right side
    95,121,411.40x = 11,268,976,792,538,970
  5. Step 5: Solve for x
    x = 11,268,976,792,538,970/95,121,411.40
  6. Step 6: Final answer
    x = 118,469,402.70

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1.5x scale

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.