Home / 512,230,138.34-768,342,637.74-124,052,958.32

Finding the Fourth Proportional to 512,230,138.34, 768,342,637.74 and 124,052,958.32

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Solution

The fourth proportional to 512,230,138.34, 768,342,637.74 and 124,052,958.32 is: 186,078,815.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,230,138.34 : 768,342,637.74 = 124,052,958.32 : x
  2. Step 2: Convert to fraction form
    512,230,138.34/768,342,637.74 = 124,052,958.32/x
  3. Step 3: Cross multiply
    512,230,138.34x = 768,342,637.74 × 124,052,958.32
  4. Step 4: Simplify right side
    512,230,138.34x = 95,315,177,215,039,072
  5. Step 5: Solve for x
    x = 95,315,177,215,039,072/512,230,138.34
  6. Step 6: Final answer
    x = 186,078,815.13

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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.