Home / 555,384,919.38-766,426,942.14-304,486,308.90

Finding the Fourth Proportional to 555,384,919.38, 766,426,942.14 and 304,486,308.90

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Solution

The fourth proportional to 555,384,919.38, 766,426,942.14 and 304,486,308.90 is: 420,188,778.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,384,919.38 : 766,426,942.14 = 304,486,308.90 : x
  2. Step 2: Convert to fraction form
    555,384,919.38/766,426,942.14 = 304,486,308.90/x
  3. Step 3: Cross multiply
    555,384,919.38x = 766,426,942.14 × 304,486,308.90
  4. Step 4: Simplify right side
    555,384,919.38x = 233,366,510,653,722,432
  5. Step 5: Solve for x
    x = 233,366,510,653,722,432/555,384,919.38
  6. Step 6: Final answer
    x = 420,188,778.11

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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.