Home / 20,732,556.30-31,098,834.45-13,192,946.70

Finding the Fourth Proportional to 20,732,556.30, 31,098,834.45 and 13,192,946.70

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Solution

The fourth proportional to 20,732,556.30, 31,098,834.45 and 13,192,946.70 is: 19,789,420.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732,556.30 : 31,098,834.45 = 13,192,946.70 : x
  2. Step 2: Convert to fraction form
    20,732,556.30/31,098,834.45 = 13,192,946.70/x
  3. Step 3: Cross multiply
    20,732,556.30x = 31,098,834.45 × 13,192,946.70
  4. Step 4: Simplify right side
    20,732,556.30x = 410,285,265,330,973.81
  5. Step 5: Solve for x
    x = 410,285,265,330,973.81/20,732,556.30
  6. Step 6: Final answer
    x = 19,789,420.05

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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.