Home / 21,169,011.28-29,229,690.78-16,266,505.72

Finding the Fourth Proportional to 21,169,011.28, 29,229,690.78 and 16,266,505.72

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Solution

The fourth proportional to 21,169,011.28, 29,229,690.78 and 16,266,505.72 is: 22,460,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,169,011.28 : 29,229,690.78 = 16,266,505.72 : x
  2. Step 2: Convert to fraction form
    21,169,011.28/29,229,690.78 = 16,266,505.72/x
  3. Step 3: Cross multiply
    21,169,011.28x = 29,229,690.78 × 16,266,505.72
  4. Step 4: Simplify right side
    21,169,011.28x = 475,464,932,266,701.31
  5. Step 5: Solve for x
    x = 475,464,932,266,701.31/21,169,011.28
  6. Step 6: Final answer
    x = 22,460,422.26

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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.