Home / 89,798,380.61-123,912,472.89-66,289,399.07

Finding the Fourth Proportional to 89,798,380.61, 123,912,472.89 and 66,289,399.07

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Solution

The fourth proportional to 89,798,380.61, 123,912,472.89 and 66,289,399.07 is: 91,472,511.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,798,380.61 : 123,912,472.89 = 66,289,399.07 : x
  2. Step 2: Convert to fraction form
    89,798,380.61/123,912,472.89 = 66,289,399.07/x
  3. Step 3: Cross multiply
    89,798,380.61x = 123,912,472.89 × 66,289,399.07
  4. Step 4: Simplify right side
    89,798,380.61x = 8,214,083,365,155,766
  5. Step 5: Solve for x
    x = 8,214,083,365,155,766/89,798,380.61
  6. Step 6: Final answer
    x = 91,472,511.08

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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.