Home / 28,021,757.30-38,669,147.71-16,427,043.08

Finding the Fourth Proportional to 28,021,757.30, 38,669,147.71 and 16,427,043.08

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Solution

The fourth proportional to 28,021,757.30, 38,669,147.71 and 16,427,043.08 is: 22,668,805.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021,757.30 : 38,669,147.71 = 16,427,043.08 : x
  2. Step 2: Convert to fraction form
    28,021,757.30/38,669,147.71 = 16,427,043.08/x
  3. Step 3: Cross multiply
    28,021,757.30x = 38,669,147.71 × 16,427,043.08
  4. Step 4: Simplify right side
    28,021,757.30x = 635,219,755,064,640
  5. Step 5: Solve for x
    x = 635,219,755,064,640/28,021,757.30
  6. Step 6: Final answer
    x = 22,668,805.11

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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.