Home / 3,948,378,653.80-5,448,763,058.34-2,188,359,689.32

Finding the Fourth Proportional to 3,948,378,653.80, 5,448,763,058.34 and 2,188,359,689.32

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Solution

The fourth proportional to 3,948,378,653.80, 5,448,763,058.34 and 2,188,359,689.32 is: 3,019,936,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948,378,653.80 : 5,448,763,058.34 = 2,188,359,689.32 : x
  2. Step 2: Convert to fraction form
    3,948,378,653.80/5,448,763,058.34 = 2,188,359,689.32/x
  3. Step 3: Cross multiply
    3,948,378,653.80x = 5,448,763,058.34 × 2,188,359,689.32
  4. Step 4: Simplify right side
    3,948,378,653.80x = 11,923,853,433,527,216,128
  5. Step 5: Solve for x
    x = 11,923,853,433,527,216,128/3,948,378,653.80
  6. Step 6: Final answer
    x = 3,019,936,657.30

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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.