Home / 20,859,882.70-31,289,824.05-19,797,000.70

Finding the Fourth Proportional to 20,859,882.70, 31,289,824.05 and 19,797,000.70

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Solution

The fourth proportional to 20,859,882.70, 31,289,824.05 and 19,797,000.70 is: 29,695,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859,882.70 : 31,289,824.05 = 19,797,000.70 : x
  2. Step 2: Convert to fraction form
    20,859,882.70/31,289,824.05 = 19,797,000.70/x
  3. Step 3: Cross multiply
    20,859,882.70x = 31,289,824.05 × 19,797,000.70
  4. Step 4: Simplify right side
    20,859,882.70x = 619,444,668,620,726.88
  5. Step 5: Solve for x
    x = 619,444,668,620,726.88/20,859,882.70
  6. Step 6: Final answer
    x = 29,695,501.05

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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.