Home / 12,491,705.36-18,729,530.52-5,210,188.64

Finding the Fourth Proportional to 12,491,705.36, 18,729,530.52 and 5,210,188.64

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Solution

The fourth proportional to 12,491,705.36, 18,729,530.52 and 5,210,188.64 is: 7,811,934.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491,705.36 : 18,729,530.52 = 5,210,188.64 : x
  2. Step 2: Convert to fraction form
    12,491,705.36/18,729,530.52 = 5,210,188.64/x
  3. Step 3: Cross multiply
    12,491,705.36x = 18,729,530.52 × 5,210,188.64
  4. Step 4: Simplify right side
    12,491,705.36x = 97,584,387,054,189.64
  5. Step 5: Solve for x
    x = 97,584,387,054,189.64/12,491,705.36
  6. Step 6: Final answer
    x = 7,811,934.74

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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.