Home / 86,028,859.20-129,025,355.40-31,467,145.80

Finding the Fourth Proportional to 86,028,859.20, 129,025,355.40 and 31,467,145.80

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Solution

The fourth proportional to 86,028,859.20, 129,025,355.40 and 31,467,145.80 is: 47,194,159.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,028,859.20 : 129,025,355.40 = 31,467,145.80 : x
  2. Step 2: Convert to fraction form
    86,028,859.20/129,025,355.40 = 31,467,145.80/x
  3. Step 3: Cross multiply
    86,028,859.20x = 129,025,355.40 × 31,467,145.80
  4. Step 4: Simplify right side
    86,028,859.20x = 4,060,059,670,268,617.50
  5. Step 5: Solve for x
    x = 4,060,059,670,268,617.50/86,028,859.20
  6. Step 6: Final answer
    x = 47,194,159.12

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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.