Home / 397,376,418.12-548,369,778.65-218,758,854.71

Finding the Fourth Proportional to 397,376,418.12, 548,369,778.65 and 218,758,854.71

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Solution

The fourth proportional to 397,376,418.12, 548,369,778.65 and 218,758,854.71 is: 301,881,891.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,376,418.12 : 548,369,778.65 = 218,758,854.71 : x
  2. Step 2: Convert to fraction form
    397,376,418.12/548,369,778.65 = 218,758,854.71/x
  3. Step 3: Cross multiply
    397,376,418.12x = 548,369,778.65 × 218,758,854.71
  4. Step 4: Simplify right side
    397,376,418.12x = 119,960,744,731,214,576
  5. Step 5: Solve for x
    x = 119,960,744,731,214,576/397,376,418.12
  6. Step 6: Final answer
    x = 301,881,891.48

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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.