Home / 13,280,452.12-18,326,540.08-7,399,782.46

Finding the Fourth Proportional to 13,280,452.12, 18,326,540.08 and 7,399,782.46

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Solution

The fourth proportional to 13,280,452.12, 18,326,540.08 and 7,399,782.46 is: 10,211,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,452.12 : 18,326,540.08 = 7,399,782.46 : x
  2. Step 2: Convert to fraction form
    13,280,452.12/18,326,540.08 = 7,399,782.46/x
  3. Step 3: Cross multiply
    13,280,452.12x = 18,326,540.08 × 7,399,782.46
  4. Step 4: Simplify right side
    13,280,452.12x = 135,612,409,836,470.98
  5. Step 5: Solve for x
    x = 135,612,409,836,470.98/13,280,452.12
  6. Step 6: Final answer
    x = 10,211,430.20

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1.5x scale

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.