Home / 2,158,046.61-2,978,104.50-1,191,177.15

Finding the Fourth Proportional to 2,158,046.61, 2,978,104.50 and 1,191,177.15

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Solution

The fourth proportional to 2,158,046.61, 2,978,104.50 and 1,191,177.15 is: 1,643,824.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,046.61 : 2,978,104.50 = 1,191,177.15 : x
  2. Step 2: Convert to fraction form
    2,158,046.61/2,978,104.50 = 1,191,177.15/x
  3. Step 3: Cross multiply
    2,158,046.61x = 2,978,104.50 × 1,191,177.15
  4. Step 4: Simplify right side
    2,158,046.61x = 3,547,450,038,157.44
  5. Step 5: Solve for x
    x = 3,547,450,038,157.44/2,158,046.61
  6. Step 6: Final answer
    x = 1,643,824.57

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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.