Home / 83,018,884.20-124,192,403.10-72,941,188.20

Finding the Fourth Proportional to 83,018,884.20, 124,192,403.10 and 72,941,188.20

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Solution

The fourth proportional to 83,018,884.20, 124,192,403.10 and 72,941,188.20 is: 109,116,636.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,018,884.20 : 124,192,403.10 = 72,941,188.20 : x
  2. Step 2: Convert to fraction form
    83,018,884.20/124,192,403.10 = 72,941,188.20/x
  3. Step 3: Cross multiply
    83,018,884.20x = 124,192,403.10 × 72,941,188.20
  4. Step 4: Simplify right side
    83,018,884.20x = 9,058,741,447,527,364
  5. Step 5: Solve for x
    x = 9,058,741,447,527,364/83,018,884.20
  6. Step 6: Final answer
    x = 109,116,636.95

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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.