Home / 219,884,969.70-329,864,779.35-66,529,808.10

Finding the Fourth Proportional to 219,884,969.70, 329,864,779.35 and 66,529,808.10

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Solution

The fourth proportional to 219,884,969.70, 329,864,779.35 and 66,529,808.10 is: 99,806,005.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,884,969.70 : 329,864,779.35 = 66,529,808.10 : x
  2. Step 2: Convert to fraction form
    219,884,969.70/329,864,779.35 = 66,529,808.10/x
  3. Step 3: Cross multiply
    219,884,969.70x = 329,864,779.35 × 66,529,808.10
  4. Step 4: Simplify right side
    219,884,969.70x = 21,945,840,469,104,344
  5. Step 5: Solve for x
    x = 21,945,840,469,104,344/219,884,969.70
  6. Step 6: Final answer
    x = 99,806,005.38

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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.