Home / 19,556,428.20-29,313,647.10-7,421,202.60

Finding the Fourth Proportional to 19,556,428.20, 29,313,647.10 and 7,421,202.60

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Solution

The fourth proportional to 19,556,428.20, 29,313,647.10 and 7,421,202.60 is: 11,123,836.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,556,428.20 : 29,313,647.10 = 7,421,202.60 : x
  2. Step 2: Convert to fraction form
    19,556,428.20/29,313,647.10 = 7,421,202.60/x
  3. Step 3: Cross multiply
    19,556,428.20x = 29,313,647.10 × 7,421,202.60
  4. Step 4: Simplify right side
    19,556,428.20x = 217,542,514,074,002.47
  5. Step 5: Solve for x
    x = 217,542,514,074,002.47/19,556,428.20
  6. Step 6: Final answer
    x = 11,123,836.72

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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.