Home / 141,062,401.80-211,593,602.70-85,819,109.85

Finding the Fourth Proportional to 141,062,401.80, 211,593,602.70 and 85,819,109.85

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Solution

The fourth proportional to 141,062,401.80, 211,593,602.70 and 85,819,109.85 is: 128,728,664.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,062,401.80 : 211,593,602.70 = 85,819,109.85 : x
  2. Step 2: Convert to fraction form
    141,062,401.80/211,593,602.70 = 85,819,109.85/x
  3. Step 3: Cross multiply
    141,062,401.80x = 211,593,602.70 × 85,819,109.85
  4. Step 4: Simplify right side
    141,062,401.80x = 18,158,774,633,668,556
  5. Step 5: Solve for x
    x = 18,158,774,633,668,556/141,062,401.80
  6. Step 6: Final answer
    x = 128,728,664.78

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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.