Home / 38,979,440.28-53,790,255.90-21,575,819.16

Finding the Fourth Proportional to 38,979,440.28, 53,790,255.90 and 21,575,819.16

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Solution

The fourth proportional to 38,979,440.28, 53,790,255.90 and 21,575,819.16 is: 29,773,871.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,979,440.28 : 53,790,255.90 = 21,575,819.16 : x
  2. Step 2: Convert to fraction form
    38,979,440.28/53,790,255.90 = 21,575,819.16/x
  3. Step 3: Cross multiply
    38,979,440.28x = 53,790,255.90 × 21,575,819.16
  4. Step 4: Simplify right side
    38,979,440.28x = 1,160,568,833,868,523
  5. Step 5: Solve for x
    x = 1,160,568,833,868,523/38,979,440.28
  6. Step 6: Final answer
    x = 29,773,871.19

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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.