Home / 168,507,947.80-252,761,921.70-66,275,320.60

Finding the Fourth Proportional to 168,507,947.80, 252,761,921.70 and 66,275,320.60

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Solution

The fourth proportional to 168,507,947.80, 252,761,921.70 and 66,275,320.60 is: 99,412,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,507,947.80 : 252,761,921.70 = 66,275,320.60 : x
  2. Step 2: Convert to fraction form
    168,507,947.80/252,761,921.70 = 66,275,320.60/x
  3. Step 3: Cross multiply
    168,507,947.80x = 252,761,921.70 × 66,275,320.60
  4. Step 4: Simplify right side
    168,507,947.80x = 16,751,877,396,139,596
  5. Step 5: Solve for x
    x = 16,751,877,396,139,596/168,507,947.80
  6. Step 6: Final answer
    x = 99,412,980.90

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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.