Home / 20,750,408.16-31,136,384.40-8,463,385.80

Finding the Fourth Proportional to 20,750,408.16, 31,136,384.40 and 8,463,385.80

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Solution

The fourth proportional to 20,750,408.16, 31,136,384.40 and 8,463,385.80 is: 12,699,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750,408.16 : 31,136,384.40 = 8,463,385.80 : x
  2. Step 2: Convert to fraction form
    20,750,408.16/31,136,384.40 = 8,463,385.80/x
  3. Step 3: Cross multiply
    20,750,408.16x = 31,136,384.40 × 8,463,385.80
  4. Step 4: Simplify right side
    20,750,408.16x = 263,519,233,594,301.53
  5. Step 5: Solve for x
    x = 263,519,233,594,301.53/20,750,408.16
  6. Step 6: Final answer
    x = 12,699,472.30

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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.