Home / 221,615,999.90-332,423,999.85-219,348,518.30

Finding the Fourth Proportional to 221,615,999.90, 332,423,999.85 and 219,348,518.30

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Solution

The fourth proportional to 221,615,999.90, 332,423,999.85 and 219,348,518.30 is: 329,022,777.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,615,999.90 : 332,423,999.85 = 219,348,518.30 : x
  2. Step 2: Convert to fraction form
    221,615,999.90/332,423,999.85 = 219,348,518.30/x
  3. Step 3: Cross multiply
    221,615,999.90x = 332,423,999.85 × 219,348,518.30
  4. Step 4: Simplify right side
    221,615,999.90x = 72,916,711,814,456,928
  5. Step 5: Solve for x
    x = 72,916,711,814,456,928/221,615,999.90
  6. Step 6: Final answer
    x = 329,022,777.45

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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.