Home / 137,974,801.62-190,416,672.30-79,248,799.65

Finding the Fourth Proportional to 137,974,801.62, 190,416,672.30 and 79,248,799.65

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Solution

The fourth proportional to 137,974,801.62, 190,416,672.30 and 79,248,799.65 is: 109,369,917.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,974,801.62 : 190,416,672.30 = 79,248,799.65 : x
  2. Step 2: Convert to fraction form
    137,974,801.62/190,416,672.30 = 79,248,799.65/x
  3. Step 3: Cross multiply
    137,974,801.62x = 190,416,672.30 × 79,248,799.65
  4. Step 4: Simplify right side
    137,974,801.62x = 15,090,292,713,122,406
  5. Step 5: Solve for x
    x = 15,090,292,713,122,406/137,974,801.62
  6. Step 6: Final answer
    x = 109,369,917.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.