Home / 3,146,688.21-4,340,857.70-1,986,572.19

Finding the Fourth Proportional to 3,146,688.21, 4,340,857.70 and 1,986,572.19

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Solution

The fourth proportional to 3,146,688.21, 4,340,857.70 and 1,986,572.19 is: 2,740,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146,688.21 : 4,340,857.70 = 1,986,572.19 : x
  2. Step 2: Convert to fraction form
    3,146,688.21/4,340,857.70 = 1,986,572.19/x
  3. Step 3: Cross multiply
    3,146,688.21x = 4,340,857.70 × 1,986,572.19
  4. Step 4: Simplify right side
    3,146,688.21x = 8,623,427,155,930.22
  5. Step 5: Solve for x
    x = 8,623,427,155,930.22/3,146,688.21
  6. Step 6: Final answer
    x = 2,740,477.16

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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.