Home / 20,864,400.80-31,274,512.37-7,018,178.25

Finding the Fourth Proportional to 20,864,400.80, 31,274,512.37 and 7,018,178.25

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Solution

The fourth proportional to 20,864,400.80, 31,274,512.37 and 7,018,178.25 is: 10,519,837.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,400.80 : 31,274,512.37 = 7,018,178.25 : x
  2. Step 2: Convert to fraction form
    20,864,400.80/31,274,512.37 = 7,018,178.25/x
  3. Step 3: Cross multiply
    20,864,400.80x = 31,274,512.37 × 7,018,178.25
  4. Step 4: Simplify right side
    20,864,400.80x = 219,490,102,590,221.69
  5. Step 5: Solve for x
    x = 219,490,102,590,221.69/20,864,400.80
  6. Step 6: Final answer
    x = 10,519,837.34

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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.