Home / 216,686,762.82-324,961,864.88-71,086,395.42

Finding the Fourth Proportional to 216,686,762.82, 324,961,864.88 and 71,086,395.42

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Solution

The fourth proportional to 216,686,762.82, 324,961,864.88 and 71,086,395.42 is: 106,607,193.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,686,762.82 : 324,961,864.88 = 71,086,395.42 : x
  2. Step 2: Convert to fraction form
    216,686,762.82/324,961,864.88 = 71,086,395.42/x
  3. Step 3: Cross multiply
    216,686,762.82x = 324,961,864.88 × 71,086,395.42
  4. Step 4: Simplify right side
    216,686,762.82x = 23,100,367,622,924,860
  5. Step 5: Solve for x
    x = 23,100,367,622,924,860/216,686,762.82
  6. Step 6: Final answer
    x = 106,607,193.36

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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.