Home / 2,158,101.56-2,978,180.30-1,191,232.08

Finding the Fourth Proportional to 2,158,101.56, 2,978,180.30 and 1,191,232.08

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Solution

The fourth proportional to 2,158,101.56, 2,978,180.30 and 1,191,232.08 is: 1,643,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,101.56 : 2,978,180.30 = 1,191,232.08 : x
  2. Step 2: Convert to fraction form
    2,158,101.56/2,978,180.30 = 1,191,232.08/x
  3. Step 3: Cross multiply
    2,158,101.56x = 2,978,180.30 × 1,191,232.08
  4. Step 4: Simplify right side
    2,158,101.56x = 3,547,703,913,384.02
  5. Step 5: Solve for x
    x = 3,547,703,913,384.02/2,158,101.56
  6. Step 6: Final answer
    x = 1,643,900.35

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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.