Home / 12,543,998.20-18,857,987.70-10,696,420.60

Finding the Fourth Proportional to 12,543,998.20, 18,857,987.70 and 10,696,420.60

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Solution

The fourth proportional to 12,543,998.20, 18,857,987.70 and 10,696,420.60 is: 16,080,436.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543,998.20 : 18,857,987.70 = 10,696,420.60 : x
  2. Step 2: Convert to fraction form
    12,543,998.20/18,857,987.70 = 10,696,420.60/x
  3. Step 3: Cross multiply
    12,543,998.20x = 18,857,987.70 × 10,696,420.60
  4. Step 4: Simplify right side
    12,543,998.20x = 201,712,968,108,826.59
  5. Step 5: Solve for x
    x = 201,712,968,108,826.59/12,543,998.20
  6. Step 6: Final answer
    x = 16,080,436.63

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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.