Home / 21,109,433.23-31,684,575.15-10,187,311.55

Finding the Fourth Proportional to 21,109,433.23, 31,684,575.15 and 10,187,311.55

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Solution

The fourth proportional to 21,109,433.23, 31,684,575.15 and 10,187,311.55 is: 15,290,824.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,109,433.23 : 31,684,575.15 = 10,187,311.55 : x
  2. Step 2: Convert to fraction form
    21,109,433.23/31,684,575.15 = 10,187,311.55/x
  3. Step 3: Cross multiply
    21,109,433.23x = 31,684,575.15 × 10,187,311.55
  4. Step 4: Simplify right side
    21,109,433.23x = 322,780,638,519,984.62
  5. Step 5: Solve for x
    x = 322,780,638,519,984.62/21,109,433.23
  6. Step 6: Final answer
    x = 15,290,824.49

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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.