Home / 18,996,038.20-28,496,822.10-6,213,446.20

Finding the Fourth Proportional to 18,996,038.20, 28,496,822.10 and 6,213,446.20

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Solution

The fourth proportional to 18,996,038.20, 28,496,822.10 and 6,213,446.20 is: 9,321,073.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,996,038.20 : 28,496,822.10 = 6,213,446.20 : x
  2. Step 2: Convert to fraction form
    18,996,038.20/28,496,822.10 = 6,213,446.20/x
  3. Step 3: Cross multiply
    18,996,038.20x = 28,496,822.10 × 6,213,446.20
  4. Step 4: Simplify right side
    18,996,038.20x = 177,063,470,989,321.03
  5. Step 5: Solve for x
    x = 177,063,470,989,321.03/18,996,038.20
  6. Step 6: Final answer
    x = 9,321,073.64

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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.