Home / 216,378,542-324,564,346.60-68,823,959.28

Finding the Fourth Proportional to 216,378,542, 324,564,346.60 and 68,823,959.28

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Solution

The fourth proportional to 216,378,542, 324,564,346.60 and 68,823,959.28 is: 103,234,836.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,378,542 : 324,564,346.60 = 68,823,959.28 : x
  2. Step 2: Convert to fraction form
    216,378,542/324,564,346.60 = 68,823,959.28/x
  3. Step 3: Cross multiply
    216,378,542x = 324,564,346.60 × 68,823,959.28
  4. Step 4: Simplify right side
    216,378,542x = 22,337,803,374,138,208
  5. Step 5: Solve for x
    x = 22,337,803,374,138,208/216,378,542
  6. Step 6: Final answer
    x = 103,234,836.36

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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.