Home / 12,298,087.70-18,447,131.55-4,319,911.70

Finding the Fourth Proportional to 12,298,087.70, 18,447,131.55 and 4,319,911.70

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Solution

The fourth proportional to 12,298,087.70, 18,447,131.55 and 4,319,911.70 is: 6,479,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298,087.70 : 18,447,131.55 = 4,319,911.70 : x
  2. Step 2: Convert to fraction form
    12,298,087.70/18,447,131.55 = 4,319,911.70/x
  3. Step 3: Cross multiply
    12,298,087.70x = 18,447,131.55 × 4,319,911.70
  4. Step 4: Simplify right side
    12,298,087.70x = 79,689,979,414,284.14
  5. Step 5: Solve for x
    x = 79,689,979,414,284.14/12,298,087.70
  6. Step 6: Final answer
    x = 6,479,867.55

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Similar ratio
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1.5x scale

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.