Home / 21,011,054.70-31,493,254.05-8,227,310.70

Finding the Fourth Proportional to 21,011,054.70, 31,493,254.05 and 8,227,310.70

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Solution

The fourth proportional to 21,011,054.70, 31,493,254.05 and 8,227,310.70 is: 12,331,831.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,054.70 : 31,493,254.05 = 8,227,310.70 : x
  2. Step 2: Convert to fraction form
    21,011,054.70/31,493,254.05 = 8,227,310.70/x
  3. Step 3: Cross multiply
    21,011,054.70x = 31,493,254.05 × 8,227,310.70
  4. Step 4: Simplify right side
    21,011,054.70x = 259,104,786,023,383.34
  5. Step 5: Solve for x
    x = 259,104,786,023,383.34/21,011,054.70
  6. Step 6: Final answer
    x = 12,331,831.49

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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.