Home / 13,719,447.69-20,581,053.74-7,964,882.75

Finding the Fourth Proportional to 13,719,447.69, 20,581,053.74 and 7,964,882.75

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Solution

The fourth proportional to 13,719,447.69, 20,581,053.74 and 7,964,882.75 is: 11,948,416.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719,447.69 : 20,581,053.74 = 7,964,882.75 : x
  2. Step 2: Convert to fraction form
    13,719,447.69/20,581,053.74 = 7,964,882.75/x
  3. Step 3: Cross multiply
    13,719,447.69x = 20,581,053.74 × 7,964,882.75
  4. Step 4: Simplify right side
    13,719,447.69x = 163,925,679,767,819.31
  5. Step 5: Solve for x
    x = 163,925,679,767,819.31/13,719,447.69
  6. Step 6: Final answer
    x = 11,948,416.84

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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.