Home / 21,191,646.32-31,781,778.31-5,835,279.95

Finding the Fourth Proportional to 21,191,646.32, 31,781,778.31 and 5,835,279.95

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Solution

The fourth proportional to 21,191,646.32, 31,781,778.31 and 5,835,279.95 is: 8,751,352.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191,646.32 : 31,781,778.31 = 5,835,279.95 : x
  2. Step 2: Convert to fraction form
    21,191,646.32/31,781,778.31 = 5,835,279.95/x
  3. Step 3: Cross multiply
    21,191,646.32x = 31,781,778.31 × 5,835,279.95
  4. Step 4: Simplify right side
    21,191,646.32x = 185,455,573,747,687.88
  5. Step 5: Solve for x
    x = 185,455,573,747,687.88/21,191,646.32
  6. Step 6: Final answer
    x = 8,751,352.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.