Home / 127,974,708.60-191,962,062.90-82,058,206.20

Finding the Fourth Proportional to 127,974,708.60, 191,962,062.90 and 82,058,206.20

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Solution

The fourth proportional to 127,974,708.60, 191,962,062.90 and 82,058,206.20 is: 123,087,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,974,708.60 : 191,962,062.90 = 82,058,206.20 : x
  2. Step 2: Convert to fraction form
    127,974,708.60/191,962,062.90 = 82,058,206.20/x
  3. Step 3: Cross multiply
    127,974,708.60x = 191,962,062.90 × 82,058,206.20
  4. Step 4: Simplify right side
    127,974,708.60x = 15,752,062,540,025,572
  5. Step 5: Solve for x
    x = 15,752,062,540,025,572/127,974,708.60
  6. Step 6: Final answer
    x = 123,087,309.30

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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.