Home / 221,616,992.10-332,425,488.15-129,783,987.30

Finding the Fourth Proportional to 221,616,992.10, 332,425,488.15 and 129,783,987.30

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Solution

The fourth proportional to 221,616,992.10, 332,425,488.15 and 129,783,987.30 is: 194,675,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,616,992.10 : 332,425,488.15 = 129,783,987.30 : x
  2. Step 2: Convert to fraction form
    221,616,992.10/332,425,488.15 = 129,783,987.30/x
  3. Step 3: Cross multiply
    221,616,992.10x = 332,425,488.15 × 129,783,987.30
  4. Step 4: Simplify right side
    221,616,992.10x = 43,143,505,332,255,896
  5. Step 5: Solve for x
    x = 43,143,505,332,255,896/221,616,992.10
  6. Step 6: Final answer
    x = 194,675,980.95

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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.