Home / 168,510,967.80-252,607,019.40-99,476,781.90

Finding the Fourth Proportional to 168,510,967.80, 252,607,019.40 and 99,476,781.90

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Solution

The fourth proportional to 168,510,967.80, 252,607,019.40 and 99,476,781.90 is: 149,121,055.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,510,967.80 : 252,607,019.40 = 99,476,781.90 : x
  2. Step 2: Convert to fraction form
    168,510,967.80/252,607,019.40 = 99,476,781.90/x
  3. Step 3: Cross multiply
    168,510,967.80x = 252,607,019.40 × 99,476,781.90
  4. Step 4: Simplify right side
    168,510,967.80x = 25,128,533,375,262,872
  5. Step 5: Solve for x
    x = 25,128,533,375,262,872/168,510,967.80
  6. Step 6: Final answer
    x = 149,121,055.46

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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.