Home / 20,612,659.20-30,918,988.80-18,849,062.40

Finding the Fourth Proportional to 20,612,659.20, 30,918,988.80 and 18,849,062.40

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Solution

The fourth proportional to 20,612,659.20, 30,918,988.80 and 18,849,062.40 is: 28,273,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,659.20 : 30,918,988.80 = 18,849,062.40 : x
  2. Step 2: Convert to fraction form
    20,612,659.20/30,918,988.80 = 18,849,062.40/x
  3. Step 3: Cross multiply
    20,612,659.20x = 30,918,988.80 × 18,849,062.40
  4. Step 4: Simplify right side
    20,612,659.20x = 582,793,949,236,101.12
  5. Step 5: Solve for x
    x = 582,793,949,236,101.12/20,612,659.20
  6. Step 6: Final answer
    x = 28,273,593.60

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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.