Home / 7,878,132.65-10,871,801.57-4,393,475.21

Finding the Fourth Proportional to 7,878,132.65, 10,871,801.57 and 4,393,475.21

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Solution

The fourth proportional to 7,878,132.65, 10,871,801.57 and 4,393,475.21 is: 6,062,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878,132.65 : 10,871,801.57 = 4,393,475.21 : x
  2. Step 2: Convert to fraction form
    7,878,132.65/10,871,801.57 = 4,393,475.21/x
  3. Step 3: Cross multiply
    7,878,132.65x = 10,871,801.57 × 4,393,475.21
  4. Step 4: Simplify right side
    7,878,132.65x = 47,764,990,723,997.27
  5. Step 5: Solve for x
    x = 47,764,990,723,997.27/7,878,132.65
  6. Step 6: Final answer
    x = 6,062,983.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.