Home / 86,789,321.87-130,183,982.80-41,212,941.71

Finding the Fourth Proportional to 86,789,321.87, 130,183,982.80 and 41,212,941.71

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Solution

The fourth proportional to 86,789,321.87, 130,183,982.80 and 41,212,941.71 is: 61,819,412.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,789,321.87 : 130,183,982.80 = 41,212,941.71 : x
  2. Step 2: Convert to fraction form
    86,789,321.87/130,183,982.80 = 41,212,941.71/x
  3. Step 3: Cross multiply
    86,789,321.87x = 130,183,982.80 × 41,212,941.71
  4. Step 4: Simplify right side
    86,789,321.87x = 5,365,264,893,958,090
  5. Step 5: Solve for x
    x = 5,365,264,893,958,090/86,789,321.87
  6. Step 6: Final answer
    x = 61,819,412.56

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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.