Home / 8,431,809.81-12,645,822.53-3,878,485.53

Finding the Fourth Proportional to 8,431,809.81, 12,645,822.53 and 3,878,485.53

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Solution

The fourth proportional to 8,431,809.81, 12,645,822.53 and 3,878,485.53 is: 5,816,857.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431,809.81 : 12,645,822.53 = 3,878,485.53 : x
  2. Step 2: Convert to fraction form
    8,431,809.81/12,645,822.53 = 3,878,485.53/x
  3. Step 3: Cross multiply
    8,431,809.81x = 12,645,822.53 × 3,878,485.53
  4. Step 4: Simplify right side
    8,431,809.81x = 49,046,639,678,160.56
  5. Step 5: Solve for x
    x = 49,046,639,678,160.56/8,431,809.81
  6. Step 6: Final answer
    x = 5,816,857.92

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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.