Home / 2,154,371.45-2,973,052.89-1,187,536.59

Finding the Fourth Proportional to 2,154,371.45, 2,973,052.89 and 1,187,536.59

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Solution

The fourth proportional to 2,154,371.45, 2,973,052.89 and 1,187,536.59 is: 1,638,811.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,371.45 : 2,973,052.89 = 1,187,536.59 : x
  2. Step 2: Convert to fraction form
    2,154,371.45/2,973,052.89 = 1,187,536.59/x
  3. Step 3: Cross multiply
    2,154,371.45x = 2,973,052.89 × 1,187,536.59
  4. Step 4: Simplify right side
    2,154,371.45x = 3,530,609,090,880.25
  5. Step 5: Solve for x
    x = 3,530,609,090,880.25/2,154,371.45
  6. Step 6: Final answer
    x = 1,638,811.68

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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.