Home / 219,794,516.20-329,691,774.30-66,420,643.60

Finding the Fourth Proportional to 219,794,516.20, 329,691,774.30 and 66,420,643.60

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Solution

The fourth proportional to 219,794,516.20, 329,691,774.30 and 66,420,643.60 is: 99,630,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,794,516.20 : 329,691,774.30 = 66,420,643.60 : x
  2. Step 2: Convert to fraction form
    219,794,516.20/329,691,774.30 = 66,420,643.60/x
  3. Step 3: Cross multiply
    219,794,516.20x = 329,691,774.30 × 66,420,643.60
  4. Step 4: Simplify right side
    219,794,516.20x = 21,898,339,838,631,940
  5. Step 5: Solve for x
    x = 21,898,339,838,631,940/219,794,516.20
  6. Step 6: Final answer
    x = 99,630,965.40

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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.