Home / 782,890,436.12-1,174,793,579.18-291,942,878.36

Finding the Fourth Proportional to 782,890,436.12, 1,174,793,579.18 and 291,942,878.36

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Solution

The fourth proportional to 782,890,436.12, 1,174,793,579.18 and 291,942,878.36 is: 438,085,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,890,436.12 : 1,174,793,579.18 = 291,942,878.36 : x
  2. Step 2: Convert to fraction form
    782,890,436.12/1,174,793,579.18 = 291,942,878.36/x
  3. Step 3: Cross multiply
    782,890,436.12x = 1,174,793,579.18 × 291,942,878.36
  4. Step 4: Simplify right side
    782,890,436.12x = 342,972,618,983,196,032
  5. Step 5: Solve for x
    x = 342,972,618,983,196,032/782,890,436.12
  6. Step 6: Final answer
    x = 438,085,079.55

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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.