Home / 12,485,336.60-18,720,401.70-4,903,218.20

Finding the Fourth Proportional to 12,485,336.60, 18,720,401.70 and 4,903,218.20

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Solution

The fourth proportional to 12,485,336.60, 18,720,401.70 and 4,903,218.20 is: 7,351,841.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,336.60 : 18,720,401.70 = 4,903,218.20 : x
  2. Step 2: Convert to fraction form
    12,485,336.60/18,720,401.70 = 4,903,218.20/x
  3. Step 3: Cross multiply
    12,485,336.60x = 18,720,401.70 × 4,903,218.20
  4. Step 4: Simplify right side
    12,485,336.60x = 91,790,214,326,750.94
  5. Step 5: Solve for x
    x = 91,790,214,326,750.94/12,485,336.60
  6. Step 6: Final answer
    x = 7,351,841.39

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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.