Home / 85,152,002.70-127,728,004.05-68,145,890.70

Finding the Fourth Proportional to 85,152,002.70, 127,728,004.05 and 68,145,890.70

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Solution

The fourth proportional to 85,152,002.70, 127,728,004.05 and 68,145,890.70 is: 102,218,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,152,002.70 : 127,728,004.05 = 68,145,890.70 : x
  2. Step 2: Convert to fraction form
    85,152,002.70/127,728,004.05 = 68,145,890.70/x
  3. Step 3: Cross multiply
    85,152,002.70x = 127,728,004.05 × 68,145,890.70
  4. Step 4: Simplify right side
    85,152,002.70x = 8,704,138,603,320,458
  5. Step 5: Solve for x
    x = 8,704,138,603,320,458/85,152,002.70
  6. Step 6: Final answer
    x = 102,218,836.05

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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.