Home / 86,527,089.60-129,790,634.40-83,503,780.80

Finding the Fourth Proportional to 86,527,089.60, 129,790,634.40 and 83,503,780.80

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Solution

The fourth proportional to 86,527,089.60, 129,790,634.40 and 83,503,780.80 is: 125,255,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,527,089.60 : 129,790,634.40 = 83,503,780.80 : x
  2. Step 2: Convert to fraction form
    86,527,089.60/129,790,634.40 = 83,503,780.80/x
  3. Step 3: Cross multiply
    86,527,089.60x = 129,790,634.40 × 83,503,780.80
  4. Step 4: Simplify right side
    86,527,089.60x = 10,838,008,684,830,540
  5. Step 5: Solve for x
    x = 10,838,008,684,830,540/86,527,089.60
  6. Step 6: Final answer
    x = 125,255,671.20

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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.