Home / 279,042,960.30-418,564,440.45-218,510,429.10

Finding the Fourth Proportional to 279,042,960.30, 418,564,440.45 and 218,510,429.10

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Solution

The fourth proportional to 279,042,960.30, 418,564,440.45 and 218,510,429.10 is: 327,765,643.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,042,960.30 : 418,564,440.45 = 218,510,429.10 : x
  2. Step 2: Convert to fraction form
    279,042,960.30/418,564,440.45 = 218,510,429.10/x
  3. Step 3: Cross multiply
    279,042,960.30x = 418,564,440.45 × 218,510,429.10
  4. Step 4: Simplify right side
    279,042,960.30x = 91,460,695,488,730,896
  5. Step 5: Solve for x
    x = 91,460,695,488,730,896/279,042,960.30
  6. Step 6: Final answer
    x = 327,765,643.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.