Home / 12,478,580.20-18,723,119.10-6,802,877.80

Finding the Fourth Proportional to 12,478,580.20, 18,723,119.10 and 6,802,877.80

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Solution

The fourth proportional to 12,478,580.20, 18,723,119.10 and 6,802,877.80 is: 10,207,178.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,580.20 : 18,723,119.10 = 6,802,877.80 : x
  2. Step 2: Convert to fraction form
    12,478,580.20/18,723,119.10 = 6,802,877.80/x
  3. Step 3: Cross multiply
    12,478,580.20x = 18,723,119.10 × 6,802,877.80
  4. Step 4: Simplify right side
    12,478,580.20x = 127,371,091,272,145.98
  5. Step 5: Solve for x
    x = 127,371,091,272,145.98/12,478,580.20
  6. Step 6: Final answer
    x = 10,207,178.16

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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.