Home / 31,555,216.80-47,332,825.20-30,279,758.40

Finding the Fourth Proportional to 31,555,216.80, 47,332,825.20 and 30,279,758.40

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Solution

The fourth proportional to 31,555,216.80, 47,332,825.20 and 30,279,758.40 is: 45,419,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,555,216.80 : 47,332,825.20 = 30,279,758.40 : x
  2. Step 2: Convert to fraction form
    31,555,216.80/47,332,825.20 = 30,279,758.40/x
  3. Step 3: Cross multiply
    31,555,216.80x = 47,332,825.20 × 30,279,758.40
  4. Step 4: Simplify right side
    31,555,216.80x = 1,433,226,511,445,431.75
  5. Step 5: Solve for x
    x = 1,433,226,511,445,431.75/31,555,216.80
  6. Step 6: Final answer
    x = 45,419,637.60

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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.