Home / 55,090,719.20-82,440,123.60-47,980,344.80

Finding the Fourth Proportional to 55,090,719.20, 82,440,123.60 and 47,980,344.80

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Solution

The fourth proportional to 55,090,719.20, 82,440,123.60 and 47,980,344.80 is: 71,799,853.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,090,719.20 : 82,440,123.60 = 47,980,344.80 : x
  2. Step 2: Convert to fraction form
    55,090,719.20/82,440,123.60 = 47,980,344.80/x
  3. Step 3: Cross multiply
    55,090,719.20x = 82,440,123.60 × 47,980,344.80
  4. Step 4: Simplify right side
    55,090,719.20x = 3,955,505,555,682,616.50
  5. Step 5: Solve for x
    x = 3,955,505,555,682,616.50/55,090,719.20
  6. Step 6: Final answer
    x = 71,799,853.28

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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.