Home / 289,203,679.20-399,100,622.40-158,823,487.20

Finding the Fourth Proportional to 289,203,679.20, 399,100,622.40 and 158,823,487.20

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Solution

The fourth proportional to 289,203,679.20, 399,100,622.40 and 158,823,487.20 is: 219,176,162.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,203,679.20 : 399,100,622.40 = 158,823,487.20 : x
  2. Step 2: Convert to fraction form
    289,203,679.20/399,100,622.40 = 158,823,487.20/x
  3. Step 3: Cross multiply
    289,203,679.20x = 399,100,622.40 × 158,823,487.20
  4. Step 4: Simplify right side
    289,203,679.20x = 63,386,552,593,258,424
  5. Step 5: Solve for x
    x = 63,386,552,593,258,424/289,203,679.20
  6. Step 6: Final answer
    x = 219,176,162.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.