Home / 21,364,534.28-29,453,774.82-13,520,144.36

Finding the Fourth Proportional to 21,364,534.28, 29,453,774.82 and 13,520,144.36

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Solution

The fourth proportional to 21,364,534.28, 29,453,774.82 and 13,520,144.36 is: 18,639,268.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364,534.28 : 29,453,774.82 = 13,520,144.36 : x
  2. Step 2: Convert to fraction form
    21,364,534.28/29,453,774.82 = 13,520,144.36/x
  3. Step 3: Cross multiply
    21,364,534.28x = 29,453,774.82 × 13,520,144.36
  4. Step 4: Simplify right side
    21,364,534.28x = 398,219,287,366,064.19
  5. Step 5: Solve for x
    x = 398,219,287,366,064.19/21,364,534.28
  6. Step 6: Final answer
    x = 18,639,268.34

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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.