Home / 168,507,948.80-252,761,923.20-66,275,321.60

Finding the Fourth Proportional to 168,507,948.80, 252,761,923.20 and 66,275,321.60

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Solution

The fourth proportional to 168,507,948.80, 252,761,923.20 and 66,275,321.60 is: 99,412,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,507,948.80 : 252,761,923.20 = 66,275,321.60 : x
  2. Step 2: Convert to fraction form
    168,507,948.80/252,761,923.20 = 66,275,321.60/x
  3. Step 3: Cross multiply
    168,507,948.80x = 252,761,923.20 × 66,275,321.60
  4. Step 4: Simplify right side
    168,507,948.80x = 16,751,877,748,314,500
  5. Step 5: Solve for x
    x = 16,751,877,748,314,500/168,507,948.80
  6. Step 6: Final answer
    x = 99,412,982.40

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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.