Home / 8,285,920.60-12,423,812.10-3,231,405.40

Finding the Fourth Proportional to 8,285,920.60, 12,423,812.10 and 3,231,405.40

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Solution

The fourth proportional to 8,285,920.60, 12,423,812.10 and 3,231,405.40 is: 4,845,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285,920.60 : 12,423,812.10 = 3,231,405.40 : x
  2. Step 2: Convert to fraction form
    8,285,920.60/12,423,812.10 = 3,231,405.40/x
  3. Step 3: Cross multiply
    8,285,920.60x = 12,423,812.10 × 3,231,405.40
  4. Step 4: Simplify right side
    8,285,920.60x = 40,146,373,508,525.34
  5. Step 5: Solve for x
    x = 40,146,373,508,525.34/8,285,920.60
  6. Step 6: Final answer
    x = 4,845,131.33

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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.