Home / 639,156,350.28-959,010,722.49-343,706,145.77

Finding the Fourth Proportional to 639,156,350.28, 959,010,722.49 and 343,706,145.77

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Solution

The fourth proportional to 639,156,350.28, 959,010,722.49 and 343,706,145.77 is: 515,707,743.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,156,350.28 : 959,010,722.49 = 343,706,145.77 : x
  2. Step 2: Convert to fraction form
    639,156,350.28/959,010,722.49 = 343,706,145.77/x
  3. Step 3: Cross multiply
    639,156,350.28x = 959,010,722.49 × 343,706,145.77
  4. Step 4: Simplify right side
    639,156,350.28x = 329,617,879,174,345,920
  5. Step 5: Solve for x
    x = 329,617,879,174,345,920/639,156,350.28
  6. Step 6: Final answer
    x = 515,707,743.54

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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.