Home / 7,864,149.72-10,855,871.34-5,287,324.20

Finding the Fourth Proportional to 7,864,149.72, 10,855,871.34 and 5,287,324.20

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Solution

The fourth proportional to 7,864,149.72, 10,855,871.34 and 5,287,324.20 is: 7,298,756.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864,149.72 : 10,855,871.34 = 5,287,324.20 : x
  2. Step 2: Convert to fraction form
    7,864,149.72/10,855,871.34 = 5,287,324.20/x
  3. Step 3: Cross multiply
    7,864,149.72x = 10,855,871.34 × 5,287,324.20
  4. Step 4: Simplify right side
    7,864,149.72x = 57,398,511,248,068.43
  5. Step 5: Solve for x
    x = 57,398,511,248,068.43/7,864,149.72
  6. Step 6: Final answer
    x = 7,298,756.16

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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.