Home / 125,705,859.15-173,489,187.41-76,144,778.66

Finding the Fourth Proportional to 125,705,859.15, 173,489,187.41 and 76,144,778.66

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Solution

The fourth proportional to 125,705,859.15, 173,489,187.41 and 76,144,778.66 is: 105,088,942.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,705,859.15 : 173,489,187.41 = 76,144,778.66 : x
  2. Step 2: Convert to fraction form
    125,705,859.15/173,489,187.41 = 76,144,778.66/x
  3. Step 3: Cross multiply
    125,705,859.15x = 173,489,187.41 × 76,144,778.66
  4. Step 4: Simplify right side
    125,705,859.15x = 13,210,295,773,989,540
  5. Step 5: Solve for x
    x = 13,210,295,773,989,540/125,705,859.15
  6. Step 6: Final answer
    x = 105,088,942.26

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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.