Home / 8,431,804.06-12,645,813.90-3,878,479.78

Finding the Fourth Proportional to 8,431,804.06, 12,645,813.90 and 3,878,479.78

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Solution

The fourth proportional to 8,431,804.06, 12,645,813.90 and 3,878,479.78 is: 5,816,849.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431,804.06 : 12,645,813.90 = 3,878,479.78 : x
  2. Step 2: Convert to fraction form
    8,431,804.06/12,645,813.90 = 3,878,479.78/x
  3. Step 3: Cross multiply
    8,431,804.06x = 12,645,813.90 × 3,878,479.78
  4. Step 4: Simplify right side
    8,431,804.06x = 49,046,533,512,792.94
  5. Step 5: Solve for x
    x = 49,046,533,512,792.94/8,431,804.06
  6. Step 6: Final answer
    x = 5,816,849.30

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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.