Home / 20,516,831.20-30,775,246.80-20,218,232.80

Finding the Fourth Proportional to 20,516,831.20, 30,775,246.80 and 20,218,232.80

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Solution

The fourth proportional to 20,516,831.20, 30,775,246.80 and 20,218,232.80 is: 30,327,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516,831.20 : 30,775,246.80 = 20,218,232.80 : x
  2. Step 2: Convert to fraction form
    20,516,831.20/30,775,246.80 = 20,218,232.80/x
  3. Step 3: Cross multiply
    20,516,831.20x = 30,775,246.80 × 20,218,232.80
  4. Step 4: Simplify right side
    20,516,831.20x = 622,221,104,279,855.12
  5. Step 5: Solve for x
    x = 622,221,104,279,855.12/20,516,831.20
  6. Step 6: Final answer
    x = 30,327,349.20

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1.5x scale

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.