Home / 13,325,420.56-18,389,121.78-7,213,834.48

Finding the Fourth Proportional to 13,325,420.56, 18,389,121.78 and 7,213,834.48

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Solution

The fourth proportional to 13,325,420.56, 18,389,121.78 and 7,213,834.48 is: 9,955,114.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325,420.56 : 18,389,121.78 = 7,213,834.48 : x
  2. Step 2: Convert to fraction form
    13,325,420.56/18,389,121.78 = 7,213,834.48/x
  3. Step 3: Cross multiply
    13,325,420.56x = 18,389,121.78 × 7,213,834.48
  4. Step 4: Simplify right side
    13,325,420.56x = 132,656,080,753,482.98
  5. Step 5: Solve for x
    x = 132,656,080,753,482.98/13,325,420.56
  6. Step 6: Final answer
    x = 9,955,114.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.