Home / 101,376,005.40-152,064,008.10-79,876,920.60

Finding the Fourth Proportional to 101,376,005.40, 152,064,008.10 and 79,876,920.60

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Solution

The fourth proportional to 101,376,005.40, 152,064,008.10 and 79,876,920.60 is: 119,815,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,376,005.40 : 152,064,008.10 = 79,876,920.60 : x
  2. Step 2: Convert to fraction form
    101,376,005.40/152,064,008.10 = 79,876,920.60/x
  3. Step 3: Cross multiply
    101,376,005.40x = 152,064,008.10 × 79,876,920.60
  4. Step 4: Simplify right side
    101,376,005.40x = 12,146,404,701,121,456
  5. Step 5: Solve for x
    x = 12,146,404,701,121,456/101,376,005.40
  6. Step 6: Final answer
    x = 119,815,380.90

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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.