Home / 10,778,889.30-16,168,333.95-5,388,371.70

Finding the Fourth Proportional to 10,778,889.30, 16,168,333.95 and 5,388,371.70

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Solution

The fourth proportional to 10,778,889.30, 16,168,333.95 and 5,388,371.70 is: 8,082,557.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778,889.30 : 16,168,333.95 = 5,388,371.70 : x
  2. Step 2: Convert to fraction form
    10,778,889.30/16,168,333.95 = 5,388,371.70/x
  3. Step 3: Cross multiply
    10,778,889.30x = 16,168,333.95 × 5,388,371.70
  4. Step 4: Simplify right side
    10,778,889.30x = 87,120,993,092,329.22
  5. Step 5: Solve for x
    x = 87,120,993,092,329.22/10,778,889.30
  6. Step 6: Final answer
    x = 8,082,557.55

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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.