Home / 12,240,711.56-18,360,402.88-3,720,383.72

Finding the Fourth Proportional to 12,240,711.56, 18,360,402.88 and 3,720,383.72

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Solution

The fourth proportional to 12,240,711.56, 18,360,402.88 and 3,720,383.72 is: 5,580,373.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240,711.56 : 18,360,402.88 = 3,720,383.72 : x
  2. Step 2: Convert to fraction form
    12,240,711.56/18,360,402.88 = 3,720,383.72/x
  3. Step 3: Cross multiply
    12,240,711.56x = 18,360,402.88 × 3,720,383.72
  4. Step 4: Simplify right side
    12,240,711.56x = 68,307,743,967,393.12
  5. Step 5: Solve for x
    x = 68,307,743,967,393.12/12,240,711.56
  6. Step 6: Final answer
    x = 5,580,373.63

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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.