Home / 681,856,289.28-1,022,803,489.98-221,794,460.42

Finding the Fourth Proportional to 681,856,289.28, 1,022,803,489.98 and 221,794,460.42

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Solution

The fourth proportional to 681,856,289.28, 1,022,803,489.98 and 221,794,460.42 is: 332,697,889.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,856,289.28 : 1,022,803,489.98 = 221,794,460.42 : x
  2. Step 2: Convert to fraction form
    681,856,289.28/1,022,803,489.98 = 221,794,460.42/x
  3. Step 3: Cross multiply
    681,856,289.28x = 1,022,803,489.98 × 221,794,460.42
  4. Step 4: Simplify right side
    681,856,289.28x = 226,852,148,170,692,960
  5. Step 5: Solve for x
    x = 226,852,148,170,692,960/681,856,289.28
  6. Step 6: Final answer
    x = 332,697,889.18

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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.