Home / 2,171,894.31-2,997,157.14-1,191,830.36

Finding the Fourth Proportional to 2,171,894.31, 2,997,157.14 and 1,191,830.36

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Solution

The fourth proportional to 2,171,894.31, 2,997,157.14 and 1,191,830.36 is: 1,644,694.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,894.31 : 2,997,157.14 = 1,191,830.36 : x
  2. Step 2: Convert to fraction form
    2,171,894.31/2,997,157.14 = 1,191,830.36/x
  3. Step 3: Cross multiply
    2,171,894.31x = 2,997,157.14 × 1,191,830.36
  4. Step 4: Simplify right side
    2,171,894.31x = 3,572,102,858,156.99
  5. Step 5: Solve for x
    x = 3,572,102,858,156.99/2,171,894.31
  6. Step 6: Final answer
    x = 1,644,694.61

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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.