Home / 13,879,371.84-19,151,247.60-8,719,078.56

Finding the Fourth Proportional to 13,879,371.84, 19,151,247.60 and 8,719,078.56

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Solution

The fourth proportional to 13,879,371.84, 19,151,247.60 and 8,719,078.56 is: 12,030,892.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,371.84 : 19,151,247.60 = 8,719,078.56 : x
  2. Step 2: Convert to fraction form
    13,879,371.84/19,151,247.60 = 8,719,078.56/x
  3. Step 3: Cross multiply
    13,879,371.84x = 19,151,247.60 × 8,719,078.56
  4. Step 4: Simplify right side
    13,879,371.84x = 166,981,232,346,411.47
  5. Step 5: Solve for x
    x = 166,981,232,346,411.47/13,879,371.84
  6. Step 6: Final answer
    x = 12,030,892.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.