Home / 21,056,172.60-31,592,553.30-8,274,502.20

Finding the Fourth Proportional to 21,056,172.60, 31,592,553.30 and 8,274,502.20

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Solution

The fourth proportional to 21,056,172.60, 31,592,553.30 and 8,274,502.20 is: 12,415,012.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056,172.60 : 31,592,553.30 = 8,274,502.20 : x
  2. Step 2: Convert to fraction form
    21,056,172.60/31,592,553.30 = 8,274,502.20/x
  3. Step 3: Cross multiply
    21,056,172.60x = 31,592,553.30 × 8,274,502.20
  4. Step 4: Simplify right side
    21,056,172.60x = 261,412,651,784,467.28
  5. Step 5: Solve for x
    x = 261,412,651,784,467.28/21,056,172.60
  6. Step 6: Final answer
    x = 12,415,012.77

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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.