Home / 86,236,120.40-129,372,151.80-28,746,251.60

Finding the Fourth Proportional to 86,236,120.40, 129,372,151.80 and 28,746,251.60

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Solution

The fourth proportional to 86,236,120.40, 129,372,151.80 and 28,746,251.60 is: 43,125,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,236,120.40 : 129,372,151.80 = 28,746,251.60 : x
  2. Step 2: Convert to fraction form
    86,236,120.40/129,372,151.80 = 28,746,251.60/x
  3. Step 3: Cross multiply
    86,236,120.40x = 129,372,151.80 × 28,746,251.60
  4. Step 4: Simplify right side
    86,236,120.40x = 3,718,964,425,676,193
  5. Step 5: Solve for x
    x = 3,718,964,425,676,193/86,236,120.40
  6. Step 6: Final answer
    x = 43,125,367.98

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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.