Home / 25,925,921.60-38,863,999.20-20,165,460.80

Finding the Fourth Proportional to 25,925,921.60, 38,863,999.20 and 20,165,460.80

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Solution

The fourth proportional to 25,925,921.60, 38,863,999.20 and 20,165,460.80 is: 30,228,836.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,925,921.60 : 38,863,999.20 = 20,165,460.80 : x
  2. Step 2: Convert to fraction form
    25,925,921.60/38,863,999.20 = 20,165,460.80/x
  3. Step 3: Cross multiply
    25,925,921.60x = 38,863,999.20 × 20,165,460.80
  4. Step 4: Simplify right side
    25,925,921.60x = 783,710,452,398,831.50
  5. Step 5: Solve for x
    x = 783,710,452,398,831.50/25,925,921.60
  6. Step 6: Final answer
    x = 30,228,836.78

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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.