Home / 15,215,297.18-20,999,263.30-9,415,947.20

Finding the Fourth Proportional to 15,215,297.18, 20,999,263.30 and 9,415,947.20

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Solution

The fourth proportional to 15,215,297.18, 20,999,263.30 and 9,415,947.20 is: 12,995,339.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,215,297.18 : 20,999,263.30 = 9,415,947.20 : x
  2. Step 2: Convert to fraction form
    15,215,297.18/20,999,263.30 = 9,415,947.20/x
  3. Step 3: Cross multiply
    15,215,297.18x = 20,999,263.30 × 9,415,947.20
  4. Step 4: Simplify right side
    15,215,297.18x = 197,727,954,471,697.75
  5. Step 5: Solve for x
    x = 197,727,954,471,697.75/15,215,297.18
  6. Step 6: Final answer
    x = 12,995,339.63

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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.