Home / 68,720,543.72-102,856,512.54-50,519,917.16

Finding the Fourth Proportional to 68,720,543.72, 102,856,512.54 and 50,519,917.16

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Solution

The fourth proportional to 68,720,543.72, 102,856,512.54 and 50,519,917.16 is: 75,614,979.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,720,543.72 : 102,856,512.54 = 50,519,917.16 : x
  2. Step 2: Convert to fraction form
    68,720,543.72/102,856,512.54 = 50,519,917.16/x
  3. Step 3: Cross multiply
    68,720,543.72x = 102,856,512.54 × 50,519,917.16
  4. Step 4: Simplify right side
    68,720,543.72x = 5,196,302,492,887,301
  5. Step 5: Solve for x
    x = 5,196,302,492,887,301/68,720,543.72
  6. Step 6: Final answer
    x = 75,614,979.33

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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.