Home / 219,794,602.20-329,691,903.30-66,420,729.60

Finding the Fourth Proportional to 219,794,602.20, 329,691,903.30 and 66,420,729.60

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Solution

The fourth proportional to 219,794,602.20, 329,691,903.30 and 66,420,729.60 is: 99,631,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,794,602.20 : 329,691,903.30 = 66,420,729.60 : x
  2. Step 2: Convert to fraction form
    219,794,602.20/329,691,903.30 = 66,420,729.60/x
  3. Step 3: Cross multiply
    219,794,602.20x = 329,691,903.30 × 66,420,729.60
  4. Step 4: Simplify right side
    219,794,602.20x = 21,898,376,760,398,648
  5. Step 5: Solve for x
    x = 21,898,376,760,398,648/219,794,602.20
  6. Step 6: Final answer
    x = 99,631,094.40

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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.