Home / 145,622,072.92-200,957,102.06-79,542,545.88

Finding the Fourth Proportional to 145,622,072.92, 200,957,102.06 and 79,542,545.88

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Solution

The fourth proportional to 145,622,072.92, 200,957,102.06 and 79,542,545.88 is: 109,767,971.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,622,072.92 : 200,957,102.06 = 79,542,545.88 : x
  2. Step 2: Convert to fraction form
    145,622,072.92/200,957,102.06 = 79,542,545.88/x
  3. Step 3: Cross multiply
    145,622,072.92x = 200,957,102.06 × 79,542,545.88
  4. Step 4: Simplify right side
    145,622,072.92x = 15,984,639,510,519,392
  5. Step 5: Solve for x
    x = 15,984,639,510,519,392/145,622,072.92
  6. Step 6: Final answer
    x = 109,767,971.23

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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.