Home / 12,251,969.10-18,377,953.65-8,220,890.70

Finding the Fourth Proportional to 12,251,969.10, 18,377,953.65 and 8,220,890.70

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Solution

The fourth proportional to 12,251,969.10, 18,377,953.65 and 8,220,890.70 is: 12,331,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251,969.10 : 18,377,953.65 = 8,220,890.70 : x
  2. Step 2: Convert to fraction form
    12,251,969.10/18,377,953.65 = 8,220,890.70/x
  3. Step 3: Cross multiply
    12,251,969.10x = 18,377,953.65 × 8,220,890.70
  4. Step 4: Simplify right side
    12,251,969.10x = 151,083,148,246,316.03
  5. Step 5: Solve for x
    x = 151,083,148,246,316.03/12,251,969.10
  6. Step 6: Final answer
    x = 12,331,336.05

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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.