Home / 89,798,379.61-123,912,471.51-66,289,398.07

Finding the Fourth Proportional to 89,798,379.61, 123,912,471.51 and 66,289,398.07

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Solution

The fourth proportional to 89,798,379.61, 123,912,471.51 and 66,289,398.07 is: 91,472,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,798,379.61 : 123,912,471.51 = 66,289,398.07 : x
  2. Step 2: Convert to fraction form
    89,798,379.61/123,912,471.51 = 66,289,398.07/x
  3. Step 3: Cross multiply
    89,798,379.61x = 123,912,471.51 × 66,289,398.07
  4. Step 4: Simplify right side
    89,798,379.61x = 8,214,083,149,763,924
  5. Step 5: Solve for x
    x = 8,214,083,149,763,924/89,798,379.61
  6. Step 6: Final answer
    x = 91,472,509.70

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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.