Home / 2,945,138.90-4,417,708.35-2,147,977.40

Finding the Fourth Proportional to 2,945,138.90, 4,417,708.35 and 2,147,977.40

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Solution

The fourth proportional to 2,945,138.90, 4,417,708.35 and 2,147,977.40 is: 3,221,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945,138.90 : 4,417,708.35 = 2,147,977.40 : x
  2. Step 2: Convert to fraction form
    2,945,138.90/4,417,708.35 = 2,147,977.40/x
  3. Step 3: Cross multiply
    2,945,138.90x = 4,417,708.35 × 2,147,977.40
  4. Step 4: Simplify right side
    2,945,138.90x = 9,489,137,695,591.29
  5. Step 5: Solve for x
    x = 9,489,137,695,591.29/2,945,138.90
  6. Step 6: Final answer
    x = 3,221,966.10

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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.