Home / 8,431,994.85-12,646,099.31-3,878,670.57

Finding the Fourth Proportional to 8,431,994.85, 12,646,099.31 and 3,878,670.57

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Solution

The fourth proportional to 8,431,994.85, 12,646,099.31 and 3,878,670.57 is: 5,817,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431,994.85 : 12,646,099.31 = 3,878,670.57 : x
  2. Step 2: Convert to fraction form
    8,431,994.85/12,646,099.31 = 3,878,670.57/x
  3. Step 3: Cross multiply
    8,431,994.85x = 12,646,099.31 × 3,878,670.57
  4. Step 4: Simplify right side
    8,431,994.85x = 49,050,053,199,600.95
  5. Step 5: Solve for x
    x = 49,050,053,199,600.95/8,431,994.85
  6. Step 6: Final answer
    x = 5,817,135.10

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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.