Home / 21,432,023.88-29,577,006.06-12,012,985.65

Finding the Fourth Proportional to 21,432,023.88, 29,577,006.06 and 12,012,985.65

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Solution

The fourth proportional to 21,432,023.88, 29,577,006.06 and 12,012,985.65 is: 16,578,375.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432,023.88 : 29,577,006.06 = 12,012,985.65 : x
  2. Step 2: Convert to fraction form
    21,432,023.88/29,577,006.06 = 12,012,985.65/x
  3. Step 3: Cross multiply
    21,432,023.88x = 29,577,006.06 × 12,012,985.65
  4. Step 4: Simplify right side
    21,432,023.88x = 355,308,149,368,743.06
  5. Step 5: Solve for x
    x = 355,308,149,368,743.06/21,432,023.88
  6. Step 6: Final answer
    x = 16,578,375.96

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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.