Home / 12,598,757.70-18,898,136.55-7,790,856.90

Finding the Fourth Proportional to 12,598,757.70, 18,898,136.55 and 7,790,856.90

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Solution

The fourth proportional to 12,598,757.70, 18,898,136.55 and 7,790,856.90 is: 11,686,285.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,598,757.70 : 18,898,136.55 = 7,790,856.90 : x
  2. Step 2: Convert to fraction form
    12,598,757.70/18,898,136.55 = 7,790,856.90/x
  3. Step 3: Cross multiply
    12,598,757.70x = 18,898,136.55 × 7,790,856.90
  4. Step 4: Simplify right side
    12,598,757.70x = 147,232,677,537,709.72
  5. Step 5: Solve for x
    x = 147,232,677,537,709.72/12,598,757.70
  6. Step 6: Final answer
    x = 11,686,285.35

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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.