Home / 13,280,440.81-18,326,524.47-7,399,771.15

Finding the Fourth Proportional to 13,280,440.81, 18,326,524.47 and 7,399,771.15

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Solution

The fourth proportional to 13,280,440.81, 18,326,524.47 and 7,399,771.15 is: 10,211,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,440.81 : 18,326,524.47 = 7,399,771.15 : x
  2. Step 2: Convert to fraction form
    13,280,440.81/18,326,524.47 = 7,399,771.15/x
  3. Step 3: Cross multiply
    13,280,440.81x = 18,326,524.47 × 7,399,771.15
  4. Step 4: Simplify right side
    13,280,440.81x = 135,612,087,055,295.55
  5. Step 5: Solve for x
    x = 135,612,087,055,295.55/13,280,440.81
  6. Step 6: Final answer
    x = 10,211,414.59

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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.