Home / 201,204,004.20-301,806,006.30-71,815,835.40

Finding the Fourth Proportional to 201,204,004.20, 301,806,006.30 and 71,815,835.40

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Solution

The fourth proportional to 201,204,004.20, 301,806,006.30 and 71,815,835.40 is: 107,723,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,204,004.20 : 301,806,006.30 = 71,815,835.40 : x
  2. Step 2: Convert to fraction form
    201,204,004.20/301,806,006.30 = 71,815,835.40/x
  3. Step 3: Cross multiply
    201,204,004.20x = 301,806,006.30 × 71,815,835.40
  4. Step 4: Simplify right side
    201,204,004.20x = 21,674,450,471,172,164
  5. Step 5: Solve for x
    x = 21,674,450,471,172,164/201,204,004.20
  6. Step 6: Final answer
    x = 107,723,753.10

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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.