Home / 2,153,997.62-2,972,395.48-1,187,124.86

Finding the Fourth Proportional to 2,153,997.62, 2,972,395.48 and 1,187,124.86

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Solution

The fourth proportional to 2,153,997.62, 2,972,395.48 and 1,187,124.86 is: 1,638,165.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,997.62 : 2,972,395.48 = 1,187,124.86 : x
  2. Step 2: Convert to fraction form
    2,153,997.62/2,972,395.48 = 1,187,124.86/x
  3. Step 3: Cross multiply
    2,153,997.62x = 2,972,395.48 × 1,187,124.86
  4. Step 4: Simplify right side
    2,153,997.62x = 3,528,604,550,229.84
  5. Step 5: Solve for x
    x = 3,528,604,550,229.84/2,153,997.62
  6. Step 6: Final answer
    x = 1,638,165.49

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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.