Home / 18,714,740.40-28,024,871.40-12,290,209.20

Finding the Fourth Proportional to 18,714,740.40, 28,024,871.40 and 12,290,209.20

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Solution

The fourth proportional to 18,714,740.40, 28,024,871.40 and 12,290,209.20 is: 18,404,291.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714,740.40 : 28,024,871.40 = 12,290,209.20 : x
  2. Step 2: Convert to fraction form
    18,714,740.40/28,024,871.40 = 12,290,209.20/x
  3. Step 3: Cross multiply
    18,714,740.40x = 28,024,871.40 × 12,290,209.20
  4. Step 4: Simplify right side
    18,714,740.40x = 344,431,532,309,096.81
  5. Step 5: Solve for x
    x = 344,431,532,309,096.81/18,714,740.40
  6. Step 6: Final answer
    x = 18,404,291.21

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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.