Home / 12,357,118.40-18,530,428.80-5,969,328.80

Finding the Fourth Proportional to 12,357,118.40, 18,530,428.80 and 5,969,328.80

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Solution

The fourth proportional to 12,357,118.40, 18,530,428.80 and 5,969,328.80 is: 8,951,457.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,118.40 : 18,530,428.80 = 5,969,328.80 : x
  2. Step 2: Convert to fraction form
    12,357,118.40/18,530,428.80 = 5,969,328.80/x
  3. Step 3: Cross multiply
    12,357,118.40x = 18,530,428.80 × 5,969,328.80
  4. Step 4: Simplify right side
    12,357,118.40x = 110,614,222,312,189.44
  5. Step 5: Solve for x
    x = 110,614,222,312,189.44/12,357,118.40
  6. Step 6: Final answer
    x = 8,951,457.67

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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.