Home / 85,019,700.80-127,529,551.20-41,972,979.80

Finding the Fourth Proportional to 85,019,700.80, 127,529,551.20 and 41,972,979.80

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Solution

The fourth proportional to 85,019,700.80, 127,529,551.20 and 41,972,979.80 is: 62,959,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,019,700.80 : 127,529,551.20 = 41,972,979.80 : x
  2. Step 2: Convert to fraction form
    85,019,700.80/127,529,551.20 = 41,972,979.80/x
  3. Step 3: Cross multiply
    85,019,700.80x = 127,529,551.20 × 41,972,979.80
  4. Step 4: Simplify right side
    85,019,700.80x = 5,352,795,276,420,666
  5. Step 5: Solve for x
    x = 5,352,795,276,420,666/85,019,700.80
  6. Step 6: Final answer
    x = 62,959,469.70

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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.