Home / 2,157,995.60-2,978,034.19-1,191,126.15

Finding the Fourth Proportional to 2,157,995.60, 2,978,034.19 and 1,191,126.15

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Solution

The fourth proportional to 2,157,995.60, 2,978,034.19 and 1,191,126.15 is: 1,643,754.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,995.60 : 2,978,034.19 = 1,191,126.15 : x
  2. Step 2: Convert to fraction form
    2,157,995.60/2,978,034.19 = 1,191,126.15/x
  3. Step 3: Cross multiply
    2,157,995.60x = 2,978,034.19 × 1,191,126.15
  4. Step 4: Simplify right side
    2,157,995.60x = 3,547,214,393,347.44
  5. Step 5: Solve for x
    x = 3,547,214,393,347.44/2,157,995.60
  6. Step 6: Final answer
    x = 1,643,754.23

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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.