Home / 221,615,998.40-332,423,997.60-219,348,516.80

Finding the Fourth Proportional to 221,615,998.40, 332,423,997.60 and 219,348,516.80

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Solution

The fourth proportional to 221,615,998.40, 332,423,997.60 and 219,348,516.80 is: 329,022,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,615,998.40 : 332,423,997.60 = 219,348,516.80 : x
  2. Step 2: Convert to fraction form
    221,615,998.40/332,423,997.60 = 219,348,516.80/x
  3. Step 3: Cross multiply
    221,615,998.40x = 332,423,997.60 × 219,348,516.80
  4. Step 4: Simplify right side
    221,615,998.40x = 72,916,710,822,286,768
  5. Step 5: Solve for x
    x = 72,916,710,822,286,768/221,615,998.40
  6. Step 6: Final answer
    x = 329,022,775.20

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1.5x scale

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.