Home / 2,157,078.66-2,976,830.85-1,190,271.21

Finding the Fourth Proportional to 2,157,078.66, 2,976,830.85 and 1,190,271.21

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Solution

The fourth proportional to 2,157,078.66, 2,976,830.85 and 1,190,271.21 is: 1,642,608.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,078.66 : 2,976,830.85 = 1,190,271.21 : x
  2. Step 2: Convert to fraction form
    2,157,078.66/2,976,830.85 = 1,190,271.21/x
  3. Step 3: Cross multiply
    2,157,078.66x = 2,976,830.85 × 1,190,271.21
  4. Step 4: Simplify right side
    2,157,078.66x = 3,543,236,057,794.83
  5. Step 5: Solve for x
    x = 3,543,236,057,794.83/2,157,078.66
  6. Step 6: Final answer
    x = 1,642,608.65

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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.