Home / 38,969,930.60-53,776,316.15-21,328,797.23

Finding the Fourth Proportional to 38,969,930.60, 53,776,316.15 and 21,328,797.23

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Solution

The fourth proportional to 38,969,930.60, 53,776,316.15 and 21,328,797.23 is: 29,432,542.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,969,930.60 : 53,776,316.15 = 21,328,797.23 : x
  2. Step 2: Convert to fraction form
    38,969,930.60/53,776,316.15 = 21,328,797.23/x
  3. Step 3: Cross multiply
    38,969,930.60x = 53,776,316.15 × 21,328,797.23
  4. Step 4: Simplify right side
    38,969,930.60x = 1,146,984,142,939,724.25
  5. Step 5: Solve for x
    x = 1,146,984,142,939,724.25/38,969,930.60
  6. Step 6: Final answer
    x = 29,432,542.61

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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.