Home / 89,638,732.29-123,699,770.75-54,828,865.65

Finding the Fourth Proportional to 89,638,732.29, 123,699,770.75 and 54,828,865.65

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Solution

The fourth proportional to 89,638,732.29, 123,699,770.75 and 54,828,865.65 is: 75,662,807.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,638,732.29 : 123,699,770.75 = 54,828,865.65 : x
  2. Step 2: Convert to fraction form
    89,638,732.29/123,699,770.75 = 54,828,865.65/x
  3. Step 3: Cross multiply
    89,638,732.29x = 123,699,770.75 × 54,828,865.65
  4. Step 4: Simplify right side
    89,638,732.29x = 6,782,318,111,645,816
  5. Step 5: Solve for x
    x = 6,782,318,111,645,816/89,638,732.29
  6. Step 6: Final answer
    x = 75,662,807.12

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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.