Home / 92,679,981.20-139,069,738.20-38,832,736.40

Finding the Fourth Proportional to 92,679,981.20, 139,069,738.20 and 38,832,736.40

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Solution

The fourth proportional to 92,679,981.20, 139,069,738.20 and 38,832,736.40 is: 58,269,956.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,679,981.20 : 139,069,738.20 = 38,832,736.40 : x
  2. Step 2: Convert to fraction form
    92,679,981.20/139,069,738.20 = 38,832,736.40/x
  3. Step 3: Cross multiply
    92,679,981.20x = 139,069,738.20 × 38,832,736.40
  4. Step 4: Simplify right side
    92,679,981.20x = 5,400,458,484,737,610
  5. Step 5: Solve for x
    x = 5,400,458,484,737,610/92,679,981.20
  6. Step 6: Final answer
    x = 58,269,956.63

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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.