Home / 111,707,819.90-167,561,729.85-103,645,663.10

Finding the Fourth Proportional to 111,707,819.90, 167,561,729.85 and 103,645,663.10

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Solution

The fourth proportional to 111,707,819.90, 167,561,729.85 and 103,645,663.10 is: 155,468,494.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,707,819.90 : 167,561,729.85 = 103,645,663.10 : x
  2. Step 2: Convert to fraction form
    111,707,819.90/167,561,729.85 = 103,645,663.10/x
  3. Step 3: Cross multiply
    111,707,819.90x = 167,561,729.85 × 103,645,663.10
  4. Step 4: Simplify right side
    111,707,819.90x = 17,367,046,600,486,312
  5. Step 5: Solve for x
    x = 17,367,046,600,486,312/111,707,819.90
  6. Step 6: Final answer
    x = 155,468,494.65

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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.