Home / 7,142,822.76-9,857,167.14-3,879,701.16

Finding the Fourth Proportional to 7,142,822.76, 9,857,167.14 and 3,879,701.16

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Solution

The fourth proportional to 7,142,822.76, 9,857,167.14 and 3,879,701.16 is: 5,354,026.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,822.76 : 9,857,167.14 = 3,879,701.16 : x
  2. Step 2: Convert to fraction form
    7,142,822.76/9,857,167.14 = 3,879,701.16/x
  3. Step 3: Cross multiply
    7,142,822.76x = 9,857,167.14 × 3,879,701.16
  4. Step 4: Simplify right side
    7,142,822.76x = 38,242,862,787,371.88
  5. Step 5: Solve for x
    x = 38,242,862,787,371.88/7,142,822.76
  6. Step 6: Final answer
    x = 5,354,026.56

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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.