Home / 85,152,375.40-127,728,563.10-42,028,234.60

Finding the Fourth Proportional to 85,152,375.40, 127,728,563.10 and 42,028,234.60

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Solution

The fourth proportional to 85,152,375.40, 127,728,563.10 and 42,028,234.60 is: 63,042,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,152,375.40 : 127,728,563.10 = 42,028,234.60 : x
  2. Step 2: Convert to fraction form
    85,152,375.40/127,728,563.10 = 42,028,234.60/x
  3. Step 3: Cross multiply
    85,152,375.40x = 127,728,563.10 × 42,028,234.60
  4. Step 4: Simplify right side
    85,152,375.40x = 5,368,206,015,087,703
  5. Step 5: Solve for x
    x = 5,368,206,015,087,703/85,152,375.40
  6. Step 6: Final answer
    x = 63,042,351.90

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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.