Home / 145,622,071.92-200,957,100.68-79,542,544.88

Finding the Fourth Proportional to 145,622,071.92, 200,957,100.68 and 79,542,544.88

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Solution

The fourth proportional to 145,622,071.92, 200,957,100.68 and 79,542,544.88 is: 109,767,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,622,071.92 : 200,957,100.68 = 79,542,544.88 : x
  2. Step 2: Convert to fraction form
    145,622,071.92/200,957,100.68 = 79,542,544.88/x
  3. Step 3: Cross multiply
    145,622,071.92x = 200,957,100.68 × 79,542,544.88
  4. Step 4: Simplify right side
    145,622,071.92x = 15,984,639,199,793,578
  5. Step 5: Solve for x
    x = 15,984,639,199,793,578/145,622,071.92
  6. Step 6: Final answer
    x = 109,767,969.85

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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.