Home / 2,157,996.10-2,978,034.88-1,191,126.65

Finding the Fourth Proportional to 2,157,996.10, 2,978,034.88 and 1,191,126.65

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Solution

The fourth proportional to 2,157,996.10, 2,978,034.88 and 1,191,126.65 is: 1,643,754.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,996.10 : 2,978,034.88 = 1,191,126.65 : x
  2. Step 2: Convert to fraction form
    2,157,996.10/2,978,034.88 = 1,191,126.65/x
  3. Step 3: Cross multiply
    2,157,996.10x = 2,978,034.88 × 1,191,126.65
  4. Step 4: Simplify right side
    2,157,996.10x = 3,547,216,704,241.92
  5. Step 5: Solve for x
    x = 3,547,216,704,241.92/2,157,996.10
  6. Step 6: Final answer
    x = 1,643,754.92

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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.