Home / 86,987,287.20-130,522,921.20-61,373,143.20

Finding the Fourth Proportional to 86,987,287.20, 130,522,921.20 and 61,373,143.20

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Solution

The fourth proportional to 86,987,287.20, 130,522,921.20 and 61,373,143.20 is: 92,089,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,987,287.20 : 130,522,921.20 = 61,373,143.20 : x
  2. Step 2: Convert to fraction form
    86,987,287.20/130,522,921.20 = 61,373,143.20/x
  3. Step 3: Cross multiply
    86,987,287.20x = 130,522,921.20 × 61,373,143.20
  4. Step 4: Simplify right side
    86,987,287.20x = 8,010,601,933,689,916
  5. Step 5: Solve for x
    x = 8,010,601,933,689,916/86,987,287.20
  6. Step 6: Final answer
    x = 92,089,340.77

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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.