Home / 17,899,862.45-26,863,165.35-12,128,912.55

Finding the Fourth Proportional to 17,899,862.45, 26,863,165.35 and 12,128,912.55

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Solution

The fourth proportional to 17,899,862.45, 26,863,165.35 and 12,128,912.55 is: 18,202,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,899,862.45 : 26,863,165.35 = 12,128,912.55 : x
  2. Step 2: Convert to fraction form
    17,899,862.45/26,863,165.35 = 12,128,912.55/x
  3. Step 3: Cross multiply
    17,899,862.45x = 26,863,165.35 × 12,128,912.55
  4. Step 4: Simplify right side
    17,899,862.45x = 325,820,983,346,340.19
  5. Step 5: Solve for x
    x = 325,820,983,346,340.19/17,899,862.45
  6. Step 6: Final answer
    x = 18,202,429.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.