Home / 342,572,147,422.80-472,721,847,572.24-198,065,548,597.72

Finding the Fourth Proportional to 342,572,147,422.80, 472,721,847,572.24 and 198,065,548,597.72

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Solution

The fourth proportional to 342,572,147,422.80, 472,721,847,572.24 and 198,065,548,597.72 is: 273,314,432,530.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,572,147,422.80 : 472,721,847,572.24 = 198,065,548,597.72 : x
  2. Step 2: Convert to fraction form
    342,572,147,422.80/472,721,847,572.24 = 198,065,548,597.72/x
  3. Step 3: Cross multiply
    342,572,147,422.80x = 472,721,847,572.24 × 198,065,548,597.72
  4. Step 4: Simplify right side
    342,572,147,422.80x = 93,629,912,073,523,481,804,800
  5. Step 5: Solve for x
    x = 93,629,912,073,523,481,804,800/342,572,147,422.80
  6. Step 6: Final answer
    x = 273,314,432,530.23

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1.5x scale

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.