Home / 27,895,115.90-38,505,702.30-20,945,868.32

Finding the Fourth Proportional to 27,895,115.90, 38,505,702.30 and 20,945,868.32

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Solution

The fourth proportional to 27,895,115.90, 38,505,702.30 and 20,945,868.32 is: 28,913,139.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,895,115.90 : 38,505,702.30 = 20,945,868.32 : x
  2. Step 2: Convert to fraction form
    27,895,115.90/38,505,702.30 = 20,945,868.32/x
  3. Step 3: Cross multiply
    27,895,115.90x = 38,505,702.30 × 20,945,868.32
  4. Step 4: Simplify right side
    27,895,115.90x = 806,535,369,944,921.12
  5. Step 5: Solve for x
    x = 806,535,369,944,921.12/27,895,115.90
  6. Step 6: Final answer
    x = 28,913,139.23

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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.