Home / 83,247,713.30-124,871,569.95-81,972,254.90

Finding the Fourth Proportional to 83,247,713.30, 124,871,569.95 and 81,972,254.90

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Solution

The fourth proportional to 83,247,713.30, 124,871,569.95 and 81,972,254.90 is: 122,958,382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,247,713.30 : 124,871,569.95 = 81,972,254.90 : x
  2. Step 2: Convert to fraction form
    83,247,713.30/124,871,569.95 = 81,972,254.90/x
  3. Step 3: Cross multiply
    83,247,713.30x = 124,871,569.95 × 81,972,254.90
  4. Step 4: Simplify right side
    83,247,713.30x = 10,236,004,161,704,582
  5. Step 5: Solve for x
    x = 10,236,004,161,704,582/83,247,713.30
  6. Step 6: Final answer
    x = 122,958,382.35

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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.