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Finding the Fourth Proportional to 8,865,340.78, 13,298,014.82 and 2,133,754.78

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Solution

The fourth proportional to 8,865,340.78, 13,298,014.82 and 2,133,754.78 is: 3,200,633.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865,340.78 : 13,298,014.82 = 2,133,754.78 : x
  2. Step 2: Convert to fraction form
    8,865,340.78/13,298,014.82 = 2,133,754.78/x
  3. Step 3: Cross multiply
    8,865,340.78x = 13,298,014.82 × 2,133,754.78
  4. Step 4: Simplify right side
    8,865,340.78x = 28,374,702,686,685.84
  5. Step 5: Solve for x
    x = 28,374,702,686,685.84/8,865,340.78
  6. Step 6: Final answer
    x = 3,200,633.05

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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.