Home / 20,755,586.36-31,106,374.92-8,445,203.36

Finding the Fourth Proportional to 20,755,586.36, 31,106,374.92 and 8,445,203.36

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Solution

The fourth proportional to 20,755,586.36, 31,106,374.92 and 8,445,203.36 is: 12,656,817.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755,586.36 : 31,106,374.92 = 8,445,203.36 : x
  2. Step 2: Convert to fraction form
    20,755,586.36/31,106,374.92 = 8,445,203.36/x
  3. Step 3: Cross multiply
    20,755,586.36x = 31,106,374.92 × 8,445,203.36
  4. Step 4: Simplify right side
    20,755,586.36x = 262,699,661,991,803.72
  5. Step 5: Solve for x
    x = 262,699,661,991,803.72/20,755,586.36
  6. Step 6: Final answer
    x = 12,656,817.18

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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.