Home / 8,178,587.82-12,268,008.99-2,421,903.78

Finding the Fourth Proportional to 8,178,587.82, 12,268,008.99 and 2,421,903.78

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Solution

The fourth proportional to 8,178,587.82, 12,268,008.99 and 2,421,903.78 is: 3,632,893.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178,587.82 : 12,268,008.99 = 2,421,903.78 : x
  2. Step 2: Convert to fraction form
    8,178,587.82/12,268,008.99 = 2,421,903.78/x
  3. Step 3: Cross multiply
    8,178,587.82x = 12,268,008.99 × 2,421,903.78
  4. Step 4: Simplify right side
    8,178,587.82x = 29,711,937,345,954.98
  5. Step 5: Solve for x
    x = 29,711,937,345,954.98/8,178,587.82
  6. Step 6: Final answer
    x = 3,632,893.36

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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.