Home / 13,019,987.99-19,491,670.91-8,691,301.89

Finding the Fourth Proportional to 13,019,987.99, 19,491,670.91 and 8,691,301.89

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Solution

The fourth proportional to 13,019,987.99, 19,491,670.91 and 8,691,301.89 is: 13,011,378.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019,987.99 : 19,491,670.91 = 8,691,301.89 : x
  2. Step 2: Convert to fraction form
    13,019,987.99/19,491,670.91 = 8,691,301.89/x
  3. Step 3: Cross multiply
    13,019,987.99x = 19,491,670.91 × 8,691,301.89
  4. Step 4: Simplify right side
    13,019,987.99x = 169,407,996,241,069.31
  5. Step 5: Solve for x
    x = 169,407,996,241,069.31/13,019,987.99
  6. Step 6: Final answer
    x = 13,011,378.84

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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.