Home / 393,362,393.32-542,825,874.30-217,146,606.04

Finding the Fourth Proportional to 393,362,393.32, 542,825,874.30 and 217,146,606.04

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Solution

The fourth proportional to 393,362,393.32, 542,825,874.30 and 217,146,606.04 is: 299,654,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,362,393.32 : 542,825,874.30 = 217,146,606.04 : x
  2. Step 2: Convert to fraction form
    393,362,393.32/542,825,874.30 = 217,146,606.04/x
  3. Step 3: Cross multiply
    393,362,393.32x = 542,825,874.30 × 217,146,606.04
  4. Step 4: Simplify right side
    393,362,393.32x = 117,872,796,274,940,640
  5. Step 5: Solve for x
    x = 117,872,796,274,940,640/393,362,393.32
  6. Step 6: Final answer
    x = 299,654,461.83

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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.