Home / 14,721,420.55-20,315,916.39-8,195,491.12

Finding the Fourth Proportional to 14,721,420.55, 20,315,916.39 and 8,195,491.12

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Solution

The fourth proportional to 14,721,420.55, 20,315,916.39 and 8,195,491.12 is: 11,309,975.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721,420.55 : 20,315,916.39 = 8,195,491.12 : x
  2. Step 2: Convert to fraction form
    14,721,420.55/20,315,916.39 = 8,195,491.12/x
  3. Step 3: Cross multiply
    14,721,420.55x = 20,315,916.39 × 8,195,491.12
  4. Step 4: Simplify right side
    14,721,420.55x = 166,498,912,368,907.47
  5. Step 5: Solve for x
    x = 166,498,912,368,907.47/14,721,420.55
  6. Step 6: Final answer
    x = 11,309,975.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.