Home / 168,681,761.80-252,854,681.10-77,646,574.60

Finding the Fourth Proportional to 168,681,761.80, 252,854,681.10 and 77,646,574.60

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Solution

The fourth proportional to 168,681,761.80, 252,854,681.10 and 77,646,574.60 is: 116,392,546.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,681,761.80 : 252,854,681.10 = 77,646,574.60 : x
  2. Step 2: Convert to fraction form
    168,681,761.80/252,854,681.10 = 77,646,574.60/x
  3. Step 3: Cross multiply
    168,681,761.80x = 252,854,681.10 × 77,646,574.60
  4. Step 4: Simplify right side
    168,681,761.80x = 19,633,299,858,990,360
  5. Step 5: Solve for x
    x = 19,633,299,858,990,360/168,681,761.80
  6. Step 6: Final answer
    x = 116,392,546.83

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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.