Home / 105,344,800.20-158,017,200.30-86,197,177.80

Finding the Fourth Proportional to 105,344,800.20, 158,017,200.30 and 86,197,177.80

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Solution

The fourth proportional to 105,344,800.20, 158,017,200.30 and 86,197,177.80 is: 129,295,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,344,800.20 : 158,017,200.30 = 86,197,177.80 : x
  2. Step 2: Convert to fraction form
    105,344,800.20/158,017,200.30 = 86,197,177.80/x
  3. Step 3: Cross multiply
    105,344,800.20x = 158,017,200.30 × 86,197,177.80
  4. Step 4: Simplify right side
    105,344,800.20x = 13,620,636,709,717,314
  5. Step 5: Solve for x
    x = 13,620,636,709,717,314/105,344,800.20
  6. Step 6: Final answer
    x = 129,295,766.70

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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.