Home / 285,370,422.91-393,813,199.16-154,990,230.91

Finding the Fourth Proportional to 285,370,422.91, 393,813,199.16 and 154,990,230.91

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Solution

The fourth proportional to 285,370,422.91, 393,813,199.16 and 154,990,230.91 is: 213,887,613.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,370,422.91 : 393,813,199.16 = 154,990,230.91 : x
  2. Step 2: Convert to fraction form
    285,370,422.91/393,813,199.16 = 154,990,230.91/x
  3. Step 3: Cross multiply
    285,370,422.91x = 393,813,199.16 × 154,990,230.91
  4. Step 4: Simplify right side
    285,370,422.91x = 61,037,198,672,439,264
  5. Step 5: Solve for x
    x = 61,037,198,672,439,264/285,370,422.91
  6. Step 6: Final answer
    x = 213,887,613.33

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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.