Home / 38,552,962.52-53,202,778.34-20,911,821.21

Finding the Fourth Proportional to 38,552,962.52, 53,202,778.34 and 20,911,821.21

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Solution

The fourth proportional to 38,552,962.52, 53,202,778.34 and 20,911,821.21 is: 28,858,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,552,962.52 : 53,202,778.34 = 20,911,821.21 : x
  2. Step 2: Convert to fraction form
    38,552,962.52/53,202,778.34 = 20,911,821.21/x
  3. Step 3: Cross multiply
    38,552,962.52x = 53,202,778.34 × 20,911,821.21
  4. Step 4: Simplify right side
    38,552,962.52x = 1,112,566,988,416,781.50
  5. Step 5: Solve for x
    x = 1,112,566,988,416,781.50/38,552,962.52
  6. Step 6: Final answer
    x = 28,858,145.15

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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.