Home / 85,464,015.40-128,192,912.70-34,332,149.80

Finding the Fourth Proportional to 85,464,015.40, 128,192,912.70 and 34,332,149.80

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Solution

The fourth proportional to 85,464,015.40, 128,192,912.70 and 34,332,149.80 is: 51,496,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,464,015.40 : 128,192,912.70 = 34,332,149.80 : x
  2. Step 2: Convert to fraction form
    85,464,015.40/128,192,912.70 = 34,332,149.80/x
  3. Step 3: Cross multiply
    85,464,015.40x = 128,192,912.70 × 34,332,149.80
  4. Step 4: Simplify right side
    85,464,015.40x = 4,401,138,282,114,722
  5. Step 5: Solve for x
    x = 4,401,138,282,114,722/85,464,015.40
  6. Step 6: Final answer
    x = 51,496,975.21

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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.