Home / 21,390,004.20-32,070,836.70-11,809,972.20

Finding the Fourth Proportional to 21,390,004.20, 32,070,836.70 and 11,809,972.20

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Solution

The fourth proportional to 21,390,004.20, 32,070,836.70 and 11,809,972.20 is: 17,707,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390,004.20 : 32,070,836.70 = 11,809,972.20 : x
  2. Step 2: Convert to fraction form
    21,390,004.20/32,070,836.70 = 11,809,972.20/x
  3. Step 3: Cross multiply
    21,390,004.20x = 32,070,836.70 × 11,809,972.20
  4. Step 4: Simplify right side
    21,390,004.20x = 378,755,689,857,739.69
  5. Step 5: Solve for x
    x = 378,755,689,857,739.69/21,390,004.20
  6. Step 6: Final answer
    x = 17,707,134.90

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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.