Home / 18,865,139.74-26,015,398.70-11,977,664.38

Finding the Fourth Proportional to 18,865,139.74, 26,015,398.70 and 11,977,664.38

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Solution

The fourth proportional to 18,865,139.74, 26,015,398.70 and 11,977,664.38 is: 16,517,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865,139.74 : 26,015,398.70 = 11,977,664.38 : x
  2. Step 2: Convert to fraction form
    18,865,139.74/26,015,398.70 = 11,977,664.38/x
  3. Step 3: Cross multiply
    18,865,139.74x = 26,015,398.70 × 11,977,664.38
  4. Step 4: Simplify right side
    18,865,139.74x = 311,603,714,361,898.12
  5. Step 5: Solve for x
    x = 311,603,714,361,898.12/18,865,139.74
  6. Step 6: Final answer
    x = 16,517,434.73

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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.