Home / 10,778,520.10-16,141,208.10-7,164,721.30

Finding the Fourth Proportional to 10,778,520.10, 16,141,208.10 and 7,164,721.30

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Solution

The fourth proportional to 10,778,520.10, 16,141,208.10 and 7,164,721.30 is: 10,729,418.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778,520.10 : 16,141,208.10 = 7,164,721.30 : x
  2. Step 2: Convert to fraction form
    10,778,520.10/16,141,208.10 = 7,164,721.30/x
  3. Step 3: Cross multiply
    10,778,520.10x = 16,141,208.10 × 7,164,721.30
  4. Step 4: Simplify right side
    10,778,520.10x = 115,647,257,481,802.53
  5. Step 5: Solve for x
    x = 115,647,257,481,802.53/10,778,520.10
  6. Step 6: Final answer
    x = 10,729,418.92

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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.