Home / 31,890,999.47-44,023,182.86-21,443,071.71

Finding the Fourth Proportional to 31,890,999.47, 44,023,182.86 and 21,443,071.71

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Solution

The fourth proportional to 31,890,999.47, 44,023,182.86 and 21,443,071.71 is: 29,600,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890,999.47 : 44,023,182.86 = 21,443,071.71 : x
  2. Step 2: Convert to fraction form
    31,890,999.47/44,023,182.86 = 21,443,071.71/x
  3. Step 3: Cross multiply
    31,890,999.47x = 44,023,182.86 × 21,443,071.71
  4. Step 4: Simplify right side
    31,890,999.47x = 943,992,266,857,943.62
  5. Step 5: Solve for x
    x = 943,992,266,857,943.62/31,890,999.47
  6. Step 6: Final answer
    x = 29,600,585.83

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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.