Home / 19,943,782.20-29,894,678.10-7,808,556.60

Finding the Fourth Proportional to 19,943,782.20, 29,894,678.10 and 7,808,556.60

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Solution

The fourth proportional to 19,943,782.20, 29,894,678.10 and 7,808,556.60 is: 11,704,614.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943,782.20 : 29,894,678.10 = 7,808,556.60 : x
  2. Step 2: Convert to fraction form
    19,943,782.20/29,894,678.10 = 7,808,556.60/x
  3. Step 3: Cross multiply
    19,943,782.20x = 29,894,678.10 × 7,808,556.60
  4. Step 4: Simplify right side
    19,943,782.20x = 233,434,285,982,630.47
  5. Step 5: Solve for x
    x = 233,434,285,982,630.47/19,943,782.20
  6. Step 6: Final answer
    x = 11,704,614.68

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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.