Home / 10,515,402.20-15,759,835.30-5,329,314.77

Finding the Fourth Proportional to 10,515,402.20, 15,759,835.30 and 5,329,314.77

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Solution

The fourth proportional to 10,515,402.20, 15,759,835.30 and 5,329,314.77 is: 7,987,247.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515,402.20 : 15,759,835.30 = 5,329,314.77 : x
  2. Step 2: Convert to fraction form
    10,515,402.20/15,759,835.30 = 5,329,314.77/x
  3. Step 3: Cross multiply
    10,515,402.20x = 15,759,835.30 × 5,329,314.77
  4. Step 4: Simplify right side
    10,515,402.20x = 83,989,122,964,919.84
  5. Step 5: Solve for x
    x = 83,989,122,964,919.84/10,515,402.20
  6. Step 6: Final answer
    x = 7,987,247.79

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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.