Home / 68,405,910.86-102,609,530.60-54,725,070.40

Finding the Fourth Proportional to 68,405,910.86, 102,609,530.60 and 54,725,070.40

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Solution

The fourth proportional to 68,405,910.86, 102,609,530.60 and 54,725,070.40 is: 82,088,137.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,405,910.86 : 102,609,530.60 = 54,725,070.40 : x
  2. Step 2: Convert to fraction form
    68,405,910.86/102,609,530.60 = 54,725,070.40/x
  3. Step 3: Cross multiply
    68,405,910.86x = 102,609,530.60 × 54,725,070.40
  4. Step 4: Simplify right side
    68,405,910.86x = 5,615,313,785,265,805
  5. Step 5: Solve for x
    x = 5,615,313,785,265,805/68,405,910.86
  6. Step 6: Final answer
    x = 82,088,137.04

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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.