Home / 345,546,048.85-518,319,073.28-216,405,885.85

Finding the Fourth Proportional to 345,546,048.85, 518,319,073.28 and 216,405,885.85

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Solution

The fourth proportional to 345,546,048.85, 518,319,073.28 and 216,405,885.85 is: 324,608,828.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,546,048.85 : 518,319,073.28 = 216,405,885.85 : x
  2. Step 2: Convert to fraction form
    345,546,048.85/518,319,073.28 = 216,405,885.85/x
  3. Step 3: Cross multiply
    345,546,048.85x = 518,319,073.28 × 216,405,885.85
  4. Step 4: Simplify right side
    345,546,048.85x = 112,167,298,205,027,424
  5. Step 5: Solve for x
    x = 112,167,298,205,027,424/345,546,048.85
  6. Step 6: Final answer
    x = 324,608,828.78

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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.