Home / 12,097,139.70-18,145,709.55-10,865,421.30

Finding the Fourth Proportional to 12,097,139.70, 18,145,709.55 and 10,865,421.30

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Solution

The fourth proportional to 12,097,139.70, 18,145,709.55 and 10,865,421.30 is: 16,298,131.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,139.70 : 18,145,709.55 = 10,865,421.30 : x
  2. Step 2: Convert to fraction form
    12,097,139.70/18,145,709.55 = 10,865,421.30/x
  3. Step 3: Cross multiply
    12,097,139.70x = 18,145,709.55 × 10,865,421.30
  4. Step 4: Simplify right side
    12,097,139.70x = 197,160,779,048,183.44
  5. Step 5: Solve for x
    x = 197,160,779,048,183.44/12,097,139.70
  6. Step 6: Final answer
    x = 16,298,131.95

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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.