Home / 221,336,648.40-332,004,972.60-67,982,458.80

Finding the Fourth Proportional to 221,336,648.40, 332,004,972.60 and 67,982,458.80

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Solution

The fourth proportional to 221,336,648.40, 332,004,972.60 and 67,982,458.80 is: 101,973,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,336,648.40 : 332,004,972.60 = 67,982,458.80 : x
  2. Step 2: Convert to fraction form
    221,336,648.40/332,004,972.60 = 67,982,458.80/x
  3. Step 3: Cross multiply
    221,336,648.40x = 332,004,972.60 × 67,982,458.80
  4. Step 4: Simplify right side
    221,336,648.40x = 22,570,514,371,174,628
  5. Step 5: Solve for x
    x = 22,570,514,371,174,628/221,336,648.40
  6. Step 6: Final answer
    x = 101,973,688.20

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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.