Home / 27,286,959.30-40,930,438.95-12,938,052.30

Finding the Fourth Proportional to 27,286,959.30, 40,930,438.95 and 12,938,052.30

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Solution

The fourth proportional to 27,286,959.30, 40,930,438.95 and 12,938,052.30 is: 19,407,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,286,959.30 : 40,930,438.95 = 12,938,052.30 : x
  2. Step 2: Convert to fraction form
    27,286,959.30/40,930,438.95 = 12,938,052.30/x
  3. Step 3: Cross multiply
    27,286,959.30x = 40,930,438.95 × 12,938,052.30
  4. Step 4: Simplify right side
    27,286,959.30x = 529,560,159,797,057.12
  5. Step 5: Solve for x
    x = 529,560,159,797,057.12/27,286,959.30
  6. Step 6: Final answer
    x = 19,407,078.45

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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.