Home / 156,192,801.41-215,541,394.54-85,625,998.18

Finding the Fourth Proportional to 156,192,801.41, 215,541,394.54 and 85,625,998.18

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Solution

The fourth proportional to 156,192,801.41, 215,541,394.54 and 85,625,998.18 is: 118,161,316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,192,801.41 : 215,541,394.54 = 85,625,998.18 : x
  2. Step 2: Convert to fraction form
    156,192,801.41/215,541,394.54 = 85,625,998.18/x
  3. Step 3: Cross multiply
    156,192,801.41x = 215,541,394.54 × 85,625,998.18
  4. Step 4: Simplify right side
    156,192,801.41x = 18,455,947,055,843,780
  5. Step 5: Solve for x
    x = 18,455,947,055,843,780/156,192,801.41
  6. Step 6: Final answer
    x = 118,161,316.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.