Home / 86,237,951.20-129,356,926.80-40,888,319.20

Finding the Fourth Proportional to 86,237,951.20, 129,356,926.80 and 40,888,319.20

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Solution

The fourth proportional to 86,237,951.20, 129,356,926.80 and 40,888,319.20 is: 61,332,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,237,951.20 : 129,356,926.80 = 40,888,319.20 : x
  2. Step 2: Convert to fraction form
    86,237,951.20/129,356,926.80 = 40,888,319.20/x
  3. Step 3: Cross multiply
    86,237,951.20x = 129,356,926.80 × 40,888,319.20
  4. Step 4: Simplify right side
    86,237,951.20x = 5,289,187,313,729,435
  5. Step 5: Solve for x
    x = 5,289,187,313,729,435/86,237,951.20
  6. Step 6: Final answer
    x = 61,332,478.80

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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.