Home / 12,449,570.80-18,674,356.20-7,398,281.20

Finding the Fourth Proportional to 12,449,570.80, 18,674,356.20 and 7,398,281.20

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Solution

The fourth proportional to 12,449,570.80, 18,674,356.20 and 7,398,281.20 is: 11,097,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449,570.80 : 18,674,356.20 = 7,398,281.20 : x
  2. Step 2: Convert to fraction form
    12,449,570.80/18,674,356.20 = 7,398,281.20/x
  3. Step 3: Cross multiply
    12,449,570.80x = 18,674,356.20 × 7,398,281.20
  4. Step 4: Simplify right side
    12,449,570.80x = 138,158,138,396,563.44
  5. Step 5: Solve for x
    x = 138,158,138,396,563.44/12,449,570.80
  6. Step 6: Final answer
    x = 11,097,421.80

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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.