Home / 782,454,942.20-1,172,935,917.30-291,036,625.40

Finding the Fourth Proportional to 782,454,942.20, 1,172,935,917.30 and 291,036,625.40

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Solution

The fourth proportional to 782,454,942.20, 1,172,935,917.30 and 291,036,625.40 is: 436,277,276.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,454,942.20 : 1,172,935,917.30 = 291,036,625.40 : x
  2. Step 2: Convert to fraction form
    782,454,942.20/1,172,935,917.30 = 291,036,625.40/x
  3. Step 3: Cross multiply
    782,454,942.20x = 1,172,935,917.30 × 291,036,625.40
  4. Step 4: Simplify right side
    782,454,942.20x = 341,367,311,181,445,440
  5. Step 5: Solve for x
    x = 341,367,311,181,445,440/782,454,942.20
  6. Step 6: Final answer
    x = 436,277,276.52

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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.