Home / 378,435,965.60-567,653,948.40-136,067,376.80

Finding the Fourth Proportional to 378,435,965.60, 567,653,948.40 and 136,067,376.80

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Solution

The fourth proportional to 378,435,965.60, 567,653,948.40 and 136,067,376.80 is: 204,101,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,435,965.60 : 567,653,948.40 = 136,067,376.80 : x
  2. Step 2: Convert to fraction form
    378,435,965.60/567,653,948.40 = 136,067,376.80/x
  3. Step 3: Cross multiply
    378,435,965.60x = 567,653,948.40 × 136,067,376.80
  4. Step 4: Simplify right side
    378,435,965.60x = 77,239,183,688,950,560
  5. Step 5: Solve for x
    x = 77,239,183,688,950,560/378,435,965.60
  6. Step 6: Final answer
    x = 204,101,065.20

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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.