Home / 25,856,542.80-38,784,814.20-18,203,792.40

Finding the Fourth Proportional to 25,856,542.80, 38,784,814.20 and 18,203,792.40

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Solution

The fourth proportional to 25,856,542.80, 38,784,814.20 and 18,203,792.40 is: 27,305,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,856,542.80 : 38,784,814.20 = 18,203,792.40 : x
  2. Step 2: Convert to fraction form
    25,856,542.80/38,784,814.20 = 18,203,792.40/x
  3. Step 3: Cross multiply
    25,856,542.80x = 38,784,814.20 × 18,203,792.40
  4. Step 4: Simplify right side
    25,856,542.80x = 706,030,705,969,372.12
  5. Step 5: Solve for x
    x = 706,030,705,969,372.12/25,856,542.80
  6. Step 6: Final answer
    x = 27,305,688.60

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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.