Home / 215,811,212.80-323,716,819.20-193,136,396.80

Finding the Fourth Proportional to 215,811,212.80, 323,716,819.20 and 193,136,396.80

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Solution

The fourth proportional to 215,811,212.80, 323,716,819.20 and 193,136,396.80 is: 289,704,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,811,212.80 : 323,716,819.20 = 193,136,396.80 : x
  2. Step 2: Convert to fraction form
    215,811,212.80/323,716,819.20 = 193,136,396.80/x
  3. Step 3: Cross multiply
    215,811,212.80x = 323,716,819.20 × 193,136,396.80
  4. Step 4: Simplify right side
    215,811,212.80x = 62,521,500,043,845,064
  5. Step 5: Solve for x
    x = 62,521,500,043,845,064/215,811,212.80
  6. Step 6: Final answer
    x = 289,704,595.20

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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.