Home / 54,380,090.70-81,570,136.05-31,390,346.70

Finding the Fourth Proportional to 54,380,090.70, 81,570,136.05 and 31,390,346.70

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Solution

The fourth proportional to 54,380,090.70, 81,570,136.05 and 31,390,346.70 is: 47,085,520.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,380,090.70 : 81,570,136.05 = 31,390,346.70 : x
  2. Step 2: Convert to fraction form
    54,380,090.70/81,570,136.05 = 31,390,346.70/x
  3. Step 3: Cross multiply
    54,380,090.70x = 81,570,136.05 × 31,390,346.70
  4. Step 4: Simplify right side
    54,380,090.70x = 2,560,514,850,975,668.50
  5. Step 5: Solve for x
    x = 2,560,514,850,975,668.50/54,380,090.70
  6. Step 6: Final answer
    x = 47,085,520.05

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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.