Home / 221,452,660.80-332,178,991.20-208,698,076.80

Finding the Fourth Proportional to 221,452,660.80, 332,178,991.20 and 208,698,076.80

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Solution

The fourth proportional to 221,452,660.80, 332,178,991.20 and 208,698,076.80 is: 313,047,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,452,660.80 : 332,178,991.20 = 208,698,076.80 : x
  2. Step 2: Convert to fraction form
    221,452,660.80/332,178,991.20 = 208,698,076.80/x
  3. Step 3: Cross multiply
    221,452,660.80x = 332,178,991.20 × 208,698,076.80
  4. Step 4: Simplify right side
    221,452,660.80x = 69,325,116,616,804,128
  5. Step 5: Solve for x
    x = 69,325,116,616,804,128/221,452,660.80
  6. Step 6: Final answer
    x = 313,047,115.20

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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.