Home / 12,919,069.99-17,828,308.46-7,117,851.67

Finding the Fourth Proportional to 12,919,069.99, 17,828,308.46 and 7,117,851.67

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Solution

The fourth proportional to 12,919,069.99, 17,828,308.46 and 7,117,851.67 is: 9,822,630.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,069.99 : 17,828,308.46 = 7,117,851.67 : x
  2. Step 2: Convert to fraction form
    12,919,069.99/17,828,308.46 = 7,117,851.67/x
  3. Step 3: Cross multiply
    12,919,069.99x = 17,828,308.46 × 7,117,851.67
  4. Step 4: Simplify right side
    12,919,069.99x = 126,899,255,145,286.14
  5. Step 5: Solve for x
    x = 126,899,255,145,286.14/12,919,069.99
  6. Step 6: Final answer
    x = 9,822,630.83

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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.