Home / 125,131,651.50-187,805,536.92-86,820,069.81

Finding the Fourth Proportional to 125,131,651.50, 187,805,536.92 and 86,820,069.81

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Solution

The fourth proportional to 125,131,651.50, 187,805,536.92 and 86,820,069.81 is: 130,305,079.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,131,651.50 : 187,805,536.92 = 86,820,069.81 : x
  2. Step 2: Convert to fraction form
    125,131,651.50/187,805,536.92 = 86,820,069.81/x
  3. Step 3: Cross multiply
    125,131,651.50x = 187,805,536.92 × 86,820,069.81
  4. Step 4: Simplify right side
    125,131,651.50x = 16,305,289,826,098,932
  5. Step 5: Solve for x
    x = 16,305,289,826,098,932/125,131,651.50
  6. Step 6: Final answer
    x = 130,305,079.74

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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.