Home / 18,708,289.10-28,062,433.65-10,646,132.30

Finding the Fourth Proportional to 18,708,289.10, 28,062,433.65 and 10,646,132.30

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Solution

The fourth proportional to 18,708,289.10, 28,062,433.65 and 10,646,132.30 is: 15,969,198.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708,289.10 : 28,062,433.65 = 10,646,132.30 : x
  2. Step 2: Convert to fraction form
    18,708,289.10/28,062,433.65 = 10,646,132.30/x
  3. Step 3: Cross multiply
    18,708,289.10x = 28,062,433.65 × 10,646,132.30
  4. Step 4: Simplify right side
    18,708,289.10x = 298,756,381,297,871.88
  5. Step 5: Solve for x
    x = 298,756,381,297,871.88/18,708,289.10
  6. Step 6: Final answer
    x = 15,969,198.45

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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.