Home / 12,278,491.40-18,382,307.70-10,861,315.40

Finding the Fourth Proportional to 12,278,491.40, 18,382,307.70 and 10,861,315.40

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Solution

The fourth proportional to 12,278,491.40, 18,382,307.70 and 10,861,315.40 is: 16,260,632.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278,491.40 : 18,382,307.70 = 10,861,315.40 : x
  2. Step 2: Convert to fraction form
    12,278,491.40/18,382,307.70 = 10,861,315.40/x
  3. Step 3: Cross multiply
    12,278,491.40x = 18,382,307.70 × 10,861,315.40
  4. Step 4: Simplify right side
    12,278,491.40x = 199,656,041,709,548.59
  5. Step 5: Solve for x
    x = 199,656,041,709,548.59/12,278,491.40
  6. Step 6: Final answer
    x = 16,260,632.94

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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.