Home / 31,257,239.64-43,121,250.74-18,860,418.77

Finding the Fourth Proportional to 31,257,239.64, 43,121,250.74 and 18,860,418.77

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Solution

The fourth proportional to 31,257,239.64, 43,121,250.74 and 18,860,418.77 is: 26,019,087.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,257,239.64 : 43,121,250.74 = 18,860,418.77 : x
  2. Step 2: Convert to fraction form
    31,257,239.64/43,121,250.74 = 18,860,418.77/x
  3. Step 3: Cross multiply
    31,257,239.64x = 43,121,250.74 × 18,860,418.77
  4. Step 4: Simplify right side
    31,257,239.64x = 813,284,846,532,664
  5. Step 5: Solve for x
    x = 813,284,846,532,664/31,257,239.64
  6. Step 6: Final answer
    x = 26,019,087.29

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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.