Home / 136,008,070.10-204,012,105.15-81,588,511.70

Finding the Fourth Proportional to 136,008,070.10, 204,012,105.15 and 81,588,511.70

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Solution

The fourth proportional to 136,008,070.10, 204,012,105.15 and 81,588,511.70 is: 122,382,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,008,070.10 : 204,012,105.15 = 81,588,511.70 : x
  2. Step 2: Convert to fraction form
    136,008,070.10/204,012,105.15 = 81,588,511.70/x
  3. Step 3: Cross multiply
    136,008,070.10x = 204,012,105.15 × 81,588,511.70
  4. Step 4: Simplify right side
    136,008,070.10x = 16,645,044,027,972,406
  5. Step 5: Solve for x
    x = 16,645,044,027,972,406/136,008,070.10
  6. Step 6: Final answer
    x = 122,382,767.55

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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.