Home / 21,037,557.80-31,559,490.30-8,906,997.80

Finding the Fourth Proportional to 21,037,557.80, 31,559,490.30 and 8,906,997.80

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Solution

The fourth proportional to 21,037,557.80, 31,559,490.30 and 8,906,997.80 is: 13,361,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,037,557.80 : 31,559,490.30 = 8,906,997.80 : x
  2. Step 2: Convert to fraction form
    21,037,557.80/31,559,490.30 = 8,906,997.80/x
  3. Step 3: Cross multiply
    21,037,557.80x = 31,559,490.30 × 8,906,997.80
  4. Step 4: Simplify right side
    21,037,557.80x = 281,100,310,671,221.38
  5. Step 5: Solve for x
    x = 281,100,310,671,221.38/21,037,557.80
  6. Step 6: Final answer
    x = 13,361,831.89

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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.