Home / 55,086,795.20-82,661,685.60-21,032,580.80

Finding the Fourth Proportional to 55,086,795.20, 82,661,685.60 and 21,032,580.80

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Solution

The fourth proportional to 55,086,795.20, 82,661,685.60 and 21,032,580.80 is: 31,560,895.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,086,795.20 : 82,661,685.60 = 21,032,580.80 : x
  2. Step 2: Convert to fraction form
    55,086,795.20/82,661,685.60 = 21,032,580.80/x
  3. Step 3: Cross multiply
    55,086,795.20x = 82,661,685.60 × 21,032,580.80
  4. Step 4: Simplify right side
    55,086,795.20x = 1,738,588,581,446,196.50
  5. Step 5: Solve for x
    x = 1,738,588,581,446,196.50/55,086,795.20
  6. Step 6: Final answer
    x = 31,560,895.40

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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.