Home / 12,662,681.28-18,994,029.03-8,892,993.12

Finding the Fourth Proportional to 12,662,681.28, 18,994,029.03 and 8,892,993.12

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Solution

The fourth proportional to 12,662,681.28, 18,994,029.03 and 8,892,993.12 is: 13,339,494.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,662,681.28 : 18,994,029.03 = 8,892,993.12 : x
  2. Step 2: Convert to fraction form
    12,662,681.28/18,994,029.03 = 8,892,993.12/x
  3. Step 3: Cross multiply
    12,662,681.28x = 18,994,029.03 × 8,892,993.12
  4. Step 4: Simplify right side
    12,662,681.28x = 168,913,769,484,870.28
  5. Step 5: Solve for x
    x = 168,913,769,484,870.28/12,662,681.28
  6. Step 6: Final answer
    x = 13,339,494.67

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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.