Home / 20,160,982,885.20-30,215,646,295.20-17,939,772,081.60

Finding the Fourth Proportional to 20,160,982,885.20, 30,215,646,295.20 and 17,939,772,081.60

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Solution

The fourth proportional to 20,160,982,885.20, 30,215,646,295.20 and 17,939,772,081.60 is: 26,886,675,660.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,982,885.20 : 30,215,646,295.20 = 17,939,772,081.60 : x
  2. Step 2: Convert to fraction form
    20,160,982,885.20/30,215,646,295.20 = 17,939,772,081.60/x
  3. Step 3: Cross multiply
    20,160,982,885.20x = 30,215,646,295.20 × 17,939,772,081.60
  4. Step 4: Simplify right side
    20,160,982,885.20x = 542,061,807,834,129,367,040
  5. Step 5: Solve for x
    x = 542,061,807,834,129,367,040/20,160,982,885.20
  6. Step 6: Final answer
    x = 26,886,675,660.64

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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.