Home / 677,002,942-933,868,235.64-425,709,621.76

Finding the Fourth Proportional to 677,002,942, 933,868,235.64 and 425,709,621.76

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Solution

The fourth proportional to 677,002,942, 933,868,235.64 and 425,709,621.76 is: 587,230,377.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,002,942 : 933,868,235.64 = 425,709,621.76 : x
  2. Step 2: Convert to fraction form
    677,002,942/933,868,235.64 = 425,709,621.76/x
  3. Step 3: Cross multiply
    677,002,942x = 933,868,235.64 × 425,709,621.76
  4. Step 4: Simplify right side
    677,002,942x = 397,556,693,367,982,912
  5. Step 5: Solve for x
    x = 397,556,693,367,982,912/677,002,942
  6. Step 6: Final answer
    x = 587,230,377.75

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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.