Home / 142,264,439.76-196,325,869.32-77,074,343.76

Finding the Fourth Proportional to 142,264,439.76, 196,325,869.32 and 77,074,343.76

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Solution

The fourth proportional to 142,264,439.76, 196,325,869.32 and 77,074,343.76 is: 106,363,104.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,264,439.76 : 196,325,869.32 = 77,074,343.76 : x
  2. Step 2: Convert to fraction form
    142,264,439.76/196,325,869.32 = 77,074,343.76/x
  3. Step 3: Cross multiply
    142,264,439.76x = 196,325,869.32 × 77,074,343.76
  4. Step 4: Simplify right side
    142,264,439.76x = 15,131,687,540,950,518
  5. Step 5: Solve for x
    x = 15,131,687,540,950,518/142,264,439.76
  6. Step 6: Final answer
    x = 106,363,104.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.