Home / 12,096,821.70-18,145,232.55-7,813,800.90

Finding the Fourth Proportional to 12,096,821.70, 18,145,232.55 and 7,813,800.90

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Solution

The fourth proportional to 12,096,821.70, 18,145,232.55 and 7,813,800.90 is: 11,720,701.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,096,821.70 : 18,145,232.55 = 7,813,800.90 : x
  2. Step 2: Convert to fraction form
    12,096,821.70/18,145,232.55 = 7,813,800.90/x
  3. Step 3: Cross multiply
    12,096,821.70x = 18,145,232.55 × 7,813,800.90
  4. Step 4: Simplify right side
    12,096,821.70x = 141,783,234,429,899.31
  5. Step 5: Solve for x
    x = 141,783,234,429,899.31/12,096,821.70
  6. Step 6: Final answer
    x = 11,720,701.35

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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.