Home / 15,397,655.10-21,253,499.19-8,875,643.82

Finding the Fourth Proportional to 15,397,655.10, 21,253,499.19 and 8,875,643.82

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Solution

The fourth proportional to 15,397,655.10, 21,253,499.19 and 8,875,643.82 is: 12,251,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,397,655.10 : 21,253,499.19 = 8,875,643.82 : x
  2. Step 2: Convert to fraction form
    15,397,655.10/21,253,499.19 = 8,875,643.82/x
  3. Step 3: Cross multiply
    15,397,655.10x = 21,253,499.19 × 8,875,643.82
  4. Step 4: Simplify right side
    15,397,655.10x = 188,638,488,739,098.53
  5. Step 5: Solve for x
    x = 188,638,488,739,098.53/15,397,655.10
  6. Step 6: Final answer
    x = 12,251,117.95

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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.