Home / 57,420,939.80-86,131,409.70-56,665,112.60

Finding the Fourth Proportional to 57,420,939.80, 86,131,409.70 and 56,665,112.60

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Solution

The fourth proportional to 57,420,939.80, 86,131,409.70 and 56,665,112.60 is: 84,997,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,420,939.80 : 86,131,409.70 = 56,665,112.60 : x
  2. Step 2: Convert to fraction form
    57,420,939.80/86,131,409.70 = 56,665,112.60/x
  3. Step 3: Cross multiply
    57,420,939.80x = 86,131,409.70 × 56,665,112.60
  4. Step 4: Simplify right side
    57,420,939.80x = 4,880,646,029,047,233
  5. Step 5: Solve for x
    x = 4,880,646,029,047,233/57,420,939.80
  6. Step 6: Final answer
    x = 84,997,668.90

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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.