Home / 409,267,123.20-613,905,933.60-136,637,890.20

Finding the Fourth Proportional to 409,267,123.20, 613,905,933.60 and 136,637,890.20

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Solution

The fourth proportional to 409,267,123.20, 613,905,933.60 and 136,637,890.20 is: 204,958,587.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,267,123.20 : 613,905,933.60 = 136,637,890.20 : x
  2. Step 2: Convert to fraction form
    409,267,123.20/613,905,933.60 = 136,637,890.20/x
  3. Step 3: Cross multiply
    409,267,123.20x = 613,905,933.60 × 136,637,890.20
  4. Step 4: Simplify right side
    409,267,123.20x = 83,882,811,548,365,280
  5. Step 5: Solve for x
    x = 83,882,811,548,365,280/409,267,123.20
  6. Step 6: Final answer
    x = 204,958,587.66

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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.