Home / 1,247,591,339.60-1,871,387,009.40-327,560,680.40

Finding the Fourth Proportional to 1,247,591,339.60, 1,871,387,009.40 and 327,560,680.40

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Solution

The fourth proportional to 1,247,591,339.60, 1,871,387,009.40 and 327,560,680.40 is: 491,341,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,591,339.60 : 1,871,387,009.40 = 327,560,680.40 : x
  2. Step 2: Convert to fraction form
    1,247,591,339.60/1,871,387,009.40 = 327,560,680.40/x
  3. Step 3: Cross multiply
    1,247,591,339.60x = 1,871,387,009.40 × 327,560,680.40
  4. Step 4: Simplify right side
    1,247,591,339.60x = 612,992,802,090,785,152
  5. Step 5: Solve for x
    x = 612,992,802,090,785,152/1,247,591,339.60
  6. Step 6: Final answer
    x = 491,341,020.60

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Similar ratio
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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.