Home / 50,719,780.64-69,993,297.60-28,990,215.20

Finding the Fourth Proportional to 50,719,780.64, 69,993,297.60 and 28,990,215.20

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Solution

The fourth proportional to 50,719,780.64, 69,993,297.60 and 28,990,215.20 is: 40,006,497.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,719,780.64 : 69,993,297.60 = 28,990,215.20 : x
  2. Step 2: Convert to fraction form
    50,719,780.64/69,993,297.60 = 28,990,215.20/x
  3. Step 3: Cross multiply
    50,719,780.64x = 69,993,297.60 × 28,990,215.20
  4. Step 4: Simplify right side
    50,719,780.64x = 2,029,120,759,981,643.25
  5. Step 5: Solve for x
    x = 2,029,120,759,981,643.25/50,719,780.64
  6. Step 6: Final answer
    x = 40,006,497.16

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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.