Home / 13,207,911.28-19,811,871.24-8,719,137.52

Finding the Fourth Proportional to 13,207,911.28, 19,811,871.24 and 8,719,137.52

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Solution

The fourth proportional to 13,207,911.28, 19,811,871.24 and 8,719,137.52 is: 13,078,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207,911.28 : 19,811,871.24 = 8,719,137.52 : x
  2. Step 2: Convert to fraction form
    13,207,911.28/19,811,871.24 = 8,719,137.52/x
  3. Step 3: Cross multiply
    13,207,911.28x = 19,811,871.24 × 8,719,137.52
  4. Step 4: Simplify right side
    13,207,911.28x = 172,742,429,870,092.91
  5. Step 5: Solve for x
    x = 172,742,429,870,092.91/13,207,911.28
  6. Step 6: Final answer
    x = 13,078,709.13

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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.