Home / 2,157,771.38-2,977,709.82-1,190,901.65

Finding the Fourth Proportional to 2,157,771.38, 2,977,709.82 and 1,190,901.65

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Solution

The fourth proportional to 2,157,771.38, 2,977,709.82 and 1,190,901.65 is: 1,643,436.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,771.38 : 2,977,709.82 = 1,190,901.65 : x
  2. Step 2: Convert to fraction form
    2,157,771.38/2,977,709.82 = 1,190,901.65/x
  3. Step 3: Cross multiply
    2,157,771.38x = 2,977,709.82 × 1,190,901.65
  4. Step 4: Simplify right side
    2,157,771.38x = 3,546,159,522,970.65
  5. Step 5: Solve for x
    x = 3,546,159,522,970.65/2,157,771.38
  6. Step 6: Final answer
    x = 1,643,436.17

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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.