Home / 21,244,432.10-29,314,715.54-13,400,999.55

Finding the Fourth Proportional to 21,244,432.10, 29,314,715.54 and 13,400,999.55

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Solution

The fourth proportional to 21,244,432.10, 29,314,715.54 and 13,400,999.55 is: 18,491,738.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244,432.10 : 29,314,715.54 = 13,400,999.55 : x
  2. Step 2: Convert to fraction form
    21,244,432.10/29,314,715.54 = 13,400,999.55/x
  3. Step 3: Cross multiply
    21,244,432.10x = 29,314,715.54 × 13,400,999.55
  4. Step 4: Simplify right side
    21,244,432.10x = 392,846,489,692,913.06
  5. Step 5: Solve for x
    x = 392,846,489,692,913.06/21,244,432.10
  6. Step 6: Final answer
    x = 18,491,738.82

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1.5x scale

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.