Home / 15,145,836.78-20,901,252.78-8,270,325.12

Finding the Fourth Proportional to 15,145,836.78, 20,901,252.78 and 8,270,325.12

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Solution

The fourth proportional to 15,145,836.78, 20,901,252.78 and 8,270,325.12 is: 11,413,047.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145,836.78 : 20,901,252.78 = 8,270,325.12 : x
  2. Step 2: Convert to fraction form
    15,145,836.78/20,901,252.78 = 8,270,325.12/x
  3. Step 3: Cross multiply
    15,145,836.78x = 20,901,252.78 × 8,270,325.12
  4. Step 4: Simplify right side
    15,145,836.78x = 172,860,155,905,903.84
  5. Step 5: Solve for x
    x = 172,860,155,905,903.84/15,145,836.78
  6. Step 6: Final answer
    x = 11,413,047.59

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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.