Home / 782,454,936.70-1,172,935,909.05-291,036,619.90

Finding the Fourth Proportional to 782,454,936.70, 1,172,935,909.05 and 291,036,619.90

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Solution

The fourth proportional to 782,454,936.70, 1,172,935,909.05 and 291,036,619.90 is: 436,277,268.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,454,936.70 : 1,172,935,909.05 = 291,036,619.90 : x
  2. Step 2: Convert to fraction form
    782,454,936.70/1,172,935,909.05 = 291,036,619.90/x
  3. Step 3: Cross multiply
    782,454,936.70x = 1,172,935,909.05 × 291,036,619.90
  4. Step 4: Simplify right side
    782,454,936.70x = 341,367,302,329,245,760
  5. Step 5: Solve for x
    x = 341,367,302,329,245,760/782,454,936.70
  6. Step 6: Final answer
    x = 436,277,268.27

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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.