Home / 12,478,636.20-18,723,203.10-6,802,933.80

Finding the Fourth Proportional to 12,478,636.20, 18,723,203.10 and 6,802,933.80

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Solution

The fourth proportional to 12,478,636.20, 18,723,203.10 and 6,802,933.80 is: 10,207,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,636.20 : 18,723,203.10 = 6,802,933.80 : x
  2. Step 2: Convert to fraction form
    12,478,636.20/18,723,203.10 = 6,802,933.80/x
  3. Step 3: Cross multiply
    12,478,636.20x = 18,723,203.10 × 6,802,933.80
  4. Step 4: Simplify right side
    12,478,636.20x = 127,372,711,213,254.78
  5. Step 5: Solve for x
    x = 127,372,711,213,254.78/12,478,636.20
  6. Step 6: Final answer
    x = 10,207,262.17

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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.