Home / 12,048,545.40-18,086,814.90-7,261,639.80

Finding the Fourth Proportional to 12,048,545.40, 18,086,814.90 and 7,261,639.80

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Solution

The fourth proportional to 12,048,545.40, 18,086,814.90 and 7,261,639.80 is: 10,900,895.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,048,545.40 : 18,086,814.90 = 7,261,639.80 : x
  2. Step 2: Convert to fraction form
    12,048,545.40/18,086,814.90 = 7,261,639.80/x
  3. Step 3: Cross multiply
    12,048,545.40x = 18,086,814.90 × 7,261,639.80
  4. Step 4: Simplify right side
    12,048,545.40x = 131,339,934,933,073
  5. Step 5: Solve for x
    x = 131,339,934,933,073/12,048,545.40
  6. Step 6: Final answer
    x = 10,900,895.55

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1.5x scale

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.