Home / 157,375,986.30-236,063,979.45-99,980,358.30

Finding the Fourth Proportional to 157,375,986.30, 236,063,979.45 and 99,980,358.30

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Solution

The fourth proportional to 157,375,986.30, 236,063,979.45 and 99,980,358.30 is: 149,970,537.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,375,986.30 : 236,063,979.45 = 99,980,358.30 : x
  2. Step 2: Convert to fraction form
    157,375,986.30/236,063,979.45 = 99,980,358.30/x
  3. Step 3: Cross multiply
    157,375,986.30x = 236,063,979.45 × 99,980,358.30
  4. Step 4: Simplify right side
    157,375,986.30x = 23,601,761,247,134,836
  5. Step 5: Solve for x
    x = 23,601,761,247,134,836/157,375,986.30
  6. Step 6: Final answer
    x = 149,970,537.45

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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.