Home / 84,100,168.80-126,173,872.80-40,970,779.20

Finding the Fourth Proportional to 84,100,168.80, 126,173,872.80 and 40,970,779.20

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Solution

The fourth proportional to 84,100,168.80, 126,173,872.80 and 40,970,779.20 is: 61,467,675.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,100,168.80 : 126,173,872.80 = 40,970,779.20 : x
  2. Step 2: Convert to fraction form
    84,100,168.80/126,173,872.80 = 40,970,779.20/x
  3. Step 3: Cross multiply
    84,100,168.80x = 126,173,872.80 × 40,970,779.20
  4. Step 4: Simplify right side
    84,100,168.80x = 5,169,441,883,297,686
  5. Step 5: Solve for x
    x = 5,169,441,883,297,686/84,100,168.80
  6. Step 6: Final answer
    x = 61,467,675.48

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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.