Home / 8,678,589.89-13,019,705.40-3,287,120.94

Finding the Fourth Proportional to 8,678,589.89, 13,019,705.40 and 3,287,120.94

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Solution

The fourth proportional to 8,678,589.89, 13,019,705.40 and 3,287,120.94 is: 4,931,370.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678,589.89 : 13,019,705.40 = 3,287,120.94 : x
  2. Step 2: Convert to fraction form
    8,678,589.89/13,019,705.40 = 3,287,120.94/x
  3. Step 3: Cross multiply
    8,678,589.89x = 13,019,705.40 × 3,287,120.94
  4. Step 4: Simplify right side
    8,678,589.89x = 42,797,346,265,297.78
  5. Step 5: Solve for x
    x = 42,797,346,265,297.78/8,678,589.89
  6. Step 6: Final answer
    x = 4,931,370.98

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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.