Home / 13,435,439.78-20,149,255.32-5,236,257.18

Finding the Fourth Proportional to 13,435,439.78, 20,149,255.32 and 5,236,257.18

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Solution

The fourth proportional to 13,435,439.78, 20,149,255.32 and 5,236,257.18 is: 7,852,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435,439.78 : 20,149,255.32 = 5,236,257.18 : x
  2. Step 2: Convert to fraction form
    13,435,439.78/20,149,255.32 = 5,236,257.18/x
  3. Step 3: Cross multiply
    13,435,439.78x = 20,149,255.32 × 5,236,257.18
  4. Step 4: Simplify right side
    13,435,439.78x = 105,506,682,841,003.19
  5. Step 5: Solve for x
    x = 105,506,682,841,003.19/13,435,439.78
  6. Step 6: Final answer
    x = 7,852,864.11

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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.