Home / 136,575,871.32-188,479,608.30-77,847,398.04

Finding the Fourth Proportional to 136,575,871.32, 188,479,608.30 and 77,847,398.04

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Solution

The fourth proportional to 136,575,871.32, 188,479,608.30 and 77,847,398.04 is: 107,432,205.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,575,871.32 : 188,479,608.30 = 77,847,398.04 : x
  2. Step 2: Convert to fraction form
    136,575,871.32/188,479,608.30 = 77,847,398.04/x
  3. Step 3: Cross multiply
    136,575,871.32x = 188,479,608.30 × 77,847,398.04
  4. Step 4: Simplify right side
    136,575,871.32x = 14,672,647,089,753,390
  5. Step 5: Solve for x
    x = 14,672,647,089,753,390/136,575,871.32
  6. Step 6: Final answer
    x = 107,432,205.62

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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.