Home / 18,480,191.87-25,499,831.83-10,638,188.91

Finding the Fourth Proportional to 18,480,191.87, 25,499,831.83 and 10,638,188.91

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Solution

The fourth proportional to 18,480,191.87, 25,499,831.83 and 10,638,188.91 is: 14,679,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480,191.87 : 25,499,831.83 = 10,638,188.91 : x
  2. Step 2: Convert to fraction form
    18,480,191.87/25,499,831.83 = 10,638,188.91/x
  3. Step 3: Cross multiply
    18,480,191.87x = 25,499,831.83 × 10,638,188.91
  4. Step 4: Simplify right side
    18,480,191.87x = 271,272,028,244,520.56
  5. Step 5: Solve for x
    x = 271,272,028,244,520.56/18,480,191.87
  6. Step 6: Final answer
    x = 14,679,069.91

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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.