Home / 343,861,229.70-515,791,844.55-312,116,487.30

Finding the Fourth Proportional to 343,861,229.70, 515,791,844.55 and 312,116,487.30

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Solution

The fourth proportional to 343,861,229.70, 515,791,844.55 and 312,116,487.30 is: 468,174,730.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,861,229.70 : 515,791,844.55 = 312,116,487.30 : x
  2. Step 2: Convert to fraction form
    343,861,229.70/515,791,844.55 = 312,116,487.30/x
  3. Step 3: Cross multiply
    343,861,229.70x = 515,791,844.55 × 312,116,487.30
  4. Step 4: Simplify right side
    343,861,229.70x = 160,987,138,698,933,664
  5. Step 5: Solve for x
    x = 160,987,138,698,933,664/343,861,229.70
  6. Step 6: Final answer
    x = 468,174,730.95

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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.