Home / 115,416,107.80-173,376,104.10-81,403,883.80

Finding the Fourth Proportional to 115,416,107.80, 173,376,104.10 and 81,403,883.80

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Solution

The fourth proportional to 115,416,107.80, 173,376,104.10 and 81,403,883.80 is: 122,283,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,416,107.80 : 173,376,104.10 = 81,403,883.80 : x
  2. Step 2: Convert to fraction form
    115,416,107.80/173,376,104.10 = 81,403,883.80/x
  3. Step 3: Cross multiply
    115,416,107.80x = 173,376,104.10 × 81,403,883.80
  4. Step 4: Simplify right side
    115,416,107.80x = 14,113,488,231,853,102
  5. Step 5: Solve for x
    x = 14,113,488,231,853,102/115,416,107.80
  6. Step 6: Final answer
    x = 122,283,522.65

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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.