Home / 56,679,789.20-85,019,683.80-27,981,975.20

Finding the Fourth Proportional to 56,679,789.20, 85,019,683.80 and 27,981,975.20

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Solution

The fourth proportional to 56,679,789.20, 85,019,683.80 and 27,981,975.20 is: 41,972,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,679,789.20 : 85,019,683.80 = 27,981,975.20 : x
  2. Step 2: Convert to fraction form
    56,679,789.20/85,019,683.80 = 27,981,975.20/x
  3. Step 3: Cross multiply
    56,679,789.20x = 85,019,683.80 × 27,981,975.20
  4. Step 4: Simplify right side
    56,679,789.20x = 2,379,018,683,603,441.50
  5. Step 5: Solve for x
    x = 2,379,018,683,603,441.50/56,679,789.20
  6. Step 6: Final answer
    x = 41,972,962.80

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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.