Home / 40,187,937.60-55,458,721.44-21,853,062.72

Finding the Fourth Proportional to 40,187,937.60, 55,458,721.44 and 21,853,062.72

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Solution

The fourth proportional to 40,187,937.60, 55,458,721.44 and 21,853,062.72 is: 30,156,882.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,187,937.60 : 55,458,721.44 = 21,853,062.72 : x
  2. Step 2: Convert to fraction form
    40,187,937.60/55,458,721.44 = 21,853,062.72/x
  3. Step 3: Cross multiply
    40,187,937.60x = 55,458,721.44 × 21,853,062.72
  4. Step 4: Simplify right side
    40,187,937.60x = 1,211,942,917,999,328.50
  5. Step 5: Solve for x
    x = 1,211,942,917,999,328.50/40,187,937.60
  6. Step 6: Final answer
    x = 30,156,882.65

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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.