Home / 138,984,578.67-191,741,234.36-80,205,541.95

Finding the Fourth Proportional to 138,984,578.67, 191,741,234.36 and 80,205,541.95

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Solution

The fourth proportional to 138,984,578.67, 191,741,234.36 and 80,205,541.95 is: 110,650,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,984,578.67 : 191,741,234.36 = 80,205,541.95 : x
  2. Step 2: Convert to fraction form
    138,984,578.67/191,741,234.36 = 80,205,541.95/x
  3. Step 3: Cross multiply
    138,984,578.67x = 191,741,234.36 × 80,205,541.95
  4. Step 4: Simplify right side
    138,984,578.67x = 15,378,709,615,604,734
  5. Step 5: Solve for x
    x = 15,378,709,615,604,734/138,984,578.67
  6. Step 6: Final answer
    x = 110,650,474.77

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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.