Home / 2,153,967.29-2,972,981.41-1,338,786.64

Finding the Fourth Proportional to 2,153,967.29, 2,972,981.41 and 1,338,786.64

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Solution

The fourth proportional to 2,153,967.29, 2,972,981.41 and 1,338,786.64 is: 1,847,840.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,967.29 : 2,972,981.41 = 1,338,786.64 : x
  2. Step 2: Convert to fraction form
    2,153,967.29/2,972,981.41 = 1,338,786.64/x
  3. Step 3: Cross multiply
    2,153,967.29x = 2,972,981.41 × 1,338,786.64
  4. Step 4: Simplify right side
    2,153,967.29x = 3,980,187,781,896.94
  5. Step 5: Solve for x
    x = 3,980,187,781,896.94/2,153,967.29
  6. Step 6: Final answer
    x = 1,847,840.41

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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.