Home / 18,714,902.40-28,025,114.40-12,290,371.20

Finding the Fourth Proportional to 18,714,902.40, 28,025,114.40 and 12,290,371.20

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Solution

The fourth proportional to 18,714,902.40, 28,025,114.40 and 12,290,371.20 is: 18,404,534.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714,902.40 : 28,025,114.40 = 12,290,371.20 : x
  2. Step 2: Convert to fraction form
    18,714,902.40/28,025,114.40 = 12,290,371.20/x
  3. Step 3: Cross multiply
    18,714,902.40x = 28,025,114.40 × 12,290,371.20
  4. Step 4: Simplify right side
    18,714,902.40x = 344,439,058,898,465.25
  5. Step 5: Solve for x
    x = 344,439,058,898,465.25/18,714,902.40
  6. Step 6: Final answer
    x = 18,404,534.07

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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.