Home / 12,482,642.80-18,682,492.20-9,061,202.80

Finding the Fourth Proportional to 12,482,642.80, 18,682,492.20 and 9,061,202.80

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Solution

The fourth proportional to 12,482,642.80, 18,682,492.20 and 9,061,202.80 is: 13,561,699.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,642.80 : 18,682,492.20 = 9,061,202.80 : x
  2. Step 2: Convert to fraction form
    12,482,642.80/18,682,492.20 = 9,061,202.80/x
  3. Step 3: Cross multiply
    12,482,642.80x = 18,682,492.20 × 9,061,202.80
  4. Step 4: Simplify right side
    12,482,642.80x = 169,285,850,633,618.16
  5. Step 5: Solve for x
    x = 169,285,850,633,618.16/12,482,642.80
  6. Step 6: Final answer
    x = 13,561,699.50

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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.