Home / 285,370,418.16-393,813,192.60-154,990,226.16

Finding the Fourth Proportional to 285,370,418.16, 393,813,192.60 and 154,990,226.16

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Solution

The fourth proportional to 285,370,418.16, 393,813,192.60 and 154,990,226.16 is: 213,887,606.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,370,418.16 : 393,813,192.60 = 154,990,226.16 : x
  2. Step 2: Convert to fraction form
    285,370,418.16/393,813,192.60 = 154,990,226.16/x
  3. Step 3: Cross multiply
    285,370,418.16x = 393,813,192.60 × 154,990,226.16
  4. Step 4: Simplify right side
    285,370,418.16x = 61,037,195,785,865,640
  5. Step 5: Solve for x
    x = 61,037,195,785,865,640/285,370,418.16
  6. Step 6: Final answer
    x = 213,887,606.78

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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.