Home / 132,102,381.60-198,153,572.40-86,185,879.20

Finding the Fourth Proportional to 132,102,381.60, 198,153,572.40 and 86,185,879.20

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Solution

The fourth proportional to 132,102,381.60, 198,153,572.40 and 86,185,879.20 is: 129,278,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,102,381.60 : 198,153,572.40 = 86,185,879.20 : x
  2. Step 2: Convert to fraction form
    132,102,381.60/198,153,572.40 = 86,185,879.20/x
  3. Step 3: Cross multiply
    132,102,381.60x = 198,153,572.40 × 86,185,879.20
  4. Step 4: Simplify right side
    132,102,381.60x = 17,078,039,853,914,856
  5. Step 5: Solve for x
    x = 17,078,039,853,914,856/132,102,381.60
  6. Step 6: Final answer
    x = 129,278,818.80

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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.