Home / 7,145,730.18-10,712,570.09-3,099,170.25

Finding the Fourth Proportional to 7,145,730.18, 10,712,570.09 and 3,099,170.25

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Solution

The fourth proportional to 7,145,730.18, 10,712,570.09 and 3,099,170.25 is: 4,646,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145,730.18 : 10,712,570.09 = 3,099,170.25 : x
  2. Step 2: Convert to fraction form
    7,145,730.18/10,712,570.09 = 3,099,170.25/x
  3. Step 3: Cross multiply
    7,145,730.18x = 10,712,570.09 × 3,099,170.25
  4. Step 4: Simplify right side
    7,145,730.18x = 33,200,078,508,471.97
  5. Step 5: Solve for x
    x = 33,200,078,508,471.97/7,145,730.18
  6. Step 6: Final answer
    x = 4,646,142.20

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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.