Home / 18,612,774.80-27,864,049.80-13,841,615.60

Finding the Fourth Proportional to 18,612,774.80, 27,864,049.80 and 13,841,615.60

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Solution

The fourth proportional to 18,612,774.80, 27,864,049.80 and 13,841,615.60 is: 20,721,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612,774.80 : 27,864,049.80 = 13,841,615.60 : x
  2. Step 2: Convert to fraction form
    18,612,774.80/27,864,049.80 = 13,841,615.60/x
  3. Step 3: Cross multiply
    18,612,774.80x = 27,864,049.80 × 13,841,615.60
  4. Step 4: Simplify right side
    18,612,774.80x = 385,683,466,390,856.88
  5. Step 5: Solve for x
    x = 385,683,466,390,856.88/18,612,774.80
  6. Step 6: Final answer
    x = 20,721,438.40

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1.5x scale

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.