Home / 5,136,747.12-7,705,123.20-1,298,581.20

Finding the Fourth Proportional to 5,136,747.12, 7,705,123.20 and 1,298,581.20

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Solution

The fourth proportional to 5,136,747.12, 7,705,123.20 and 1,298,581.20 is: 1,947,872.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136,747.12 : 7,705,123.20 = 1,298,581.20 : x
  2. Step 2: Convert to fraction form
    5,136,747.12/7,705,123.20 = 1,298,581.20/x
  3. Step 3: Cross multiply
    5,136,747.12x = 7,705,123.20 × 1,298,581.20
  4. Step 4: Simplify right side
    5,136,747.12x = 10,005,728,131,203.84
  5. Step 5: Solve for x
    x = 10,005,728,131,203.84/5,136,747.12
  6. Step 6: Final answer
    x = 1,947,872.44

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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.