Home / 15,852,636.20-21,876,635.84-8,978,446.74

Finding the Fourth Proportional to 15,852,636.20, 21,876,635.84 and 8,978,446.74

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Solution

The fourth proportional to 15,852,636.20, 21,876,635.84 and 8,978,446.74 is: 12,390,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,852,636.20 : 21,876,635.84 = 8,978,446.74 : x
  2. Step 2: Convert to fraction form
    15,852,636.20/21,876,635.84 = 8,978,446.74/x
  3. Step 3: Cross multiply
    15,852,636.20x = 21,876,635.84 × 8,978,446.74
  4. Step 4: Simplify right side
    15,852,636.20x = 196,418,209,739,815.16
  5. Step 5: Solve for x
    x = 196,418,209,739,815.16/15,852,636.20
  6. Step 6: Final answer
    x = 12,390,255.30

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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.