Home / 83,018,886.20-124,192,406.10-72,941,190.20

Finding the Fourth Proportional to 83,018,886.20, 124,192,406.10 and 72,941,190.20

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Solution

The fourth proportional to 83,018,886.20, 124,192,406.10 and 72,941,190.20 is: 109,116,639.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,018,886.20 : 124,192,406.10 = 72,941,190.20 : x
  2. Step 2: Convert to fraction form
    83,018,886.20/124,192,406.10 = 72,941,190.20/x
  3. Step 3: Cross multiply
    83,018,886.20x = 124,192,406.10 × 72,941,190.20
  4. Step 4: Simplify right side
    83,018,886.20x = 9,058,741,914,735,740
  5. Step 5: Solve for x
    x = 9,058,741,914,735,740/83,018,886.20
  6. Step 6: Final answer
    x = 109,116,639.95

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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.