Home / 38,720,072.80-58,080,109.20-29,650,146.40

Finding the Fourth Proportional to 38,720,072.80, 58,080,109.20 and 29,650,146.40

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Solution

The fourth proportional to 38,720,072.80, 58,080,109.20 and 29,650,146.40 is: 44,475,219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,720,072.80 : 58,080,109.20 = 29,650,146.40 : x
  2. Step 2: Convert to fraction form
    38,720,072.80/58,080,109.20 = 29,650,146.40/x
  3. Step 3: Cross multiply
    38,720,072.80x = 58,080,109.20 × 29,650,146.40
  4. Step 4: Simplify right side
    38,720,072.80x = 1,722,083,740,707,987
  5. Step 5: Solve for x
    x = 1,722,083,740,707,987/38,720,072.80
  6. Step 6: Final answer
    x = 44,475,219.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.