Home / 221,617,556.10-332,426,334.15-129,784,551.30

Finding the Fourth Proportional to 221,617,556.10, 332,426,334.15 and 129,784,551.30

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Solution

The fourth proportional to 221,617,556.10, 332,426,334.15 and 129,784,551.30 is: 194,676,826.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,617,556.10 : 332,426,334.15 = 129,784,551.30 : x
  2. Step 2: Convert to fraction form
    221,617,556.10/332,426,334.15 = 129,784,551.30/x
  3. Step 3: Cross multiply
    221,617,556.10x = 332,426,334.15 × 129,784,551.30
  4. Step 4: Simplify right side
    221,617,556.10x = 43,143,802,617,961,616
  5. Step 5: Solve for x
    x = 43,143,802,617,961,616/221,617,556.10
  6. Step 6: Final answer
    x = 194,676,826.95

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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.