Home / 219,885,615.20-329,865,747.60-66,530,453.60

Finding the Fourth Proportional to 219,885,615.20, 329,865,747.60 and 66,530,453.60

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Solution

The fourth proportional to 219,885,615.20, 329,865,747.60 and 66,530,453.60 is: 99,806,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,885,615.20 : 329,865,747.60 = 66,530,453.60 : x
  2. Step 2: Convert to fraction form
    219,885,615.20/329,865,747.60 = 66,530,453.60/x
  3. Step 3: Cross multiply
    219,885,615.20x = 329,865,747.60 × 66,530,453.60
  4. Step 4: Simplify right side
    219,885,615.20x = 21,946,117,814,931,112
  5. Step 5: Solve for x
    x = 21,946,117,814,931,112/219,885,615.20
  6. Step 6: Final answer
    x = 99,806,973.71

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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.