Home / 12,097,205.40-18,124,812.90-11,341,378.20

Finding the Fourth Proportional to 12,097,205.40, 18,124,812.90 and 11,341,378.20

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Solution

The fourth proportional to 12,097,205.40, 18,124,812.90 and 11,341,378.20 is: 16,992,383.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,205.40 : 18,124,812.90 = 11,341,378.20 : x
  2. Step 2: Convert to fraction form
    12,097,205.40/18,124,812.90 = 11,341,378.20/x
  3. Step 3: Cross multiply
    12,097,205.40x = 18,124,812.90 × 11,341,378.20
  4. Step 4: Simplify right side
    12,097,205.40x = 205,560,357,903,138.75
  5. Step 5: Solve for x
    x = 205,560,357,903,138.75/12,097,205.40
  6. Step 6: Final answer
    x = 16,992,383.87

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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.