Home / 1,247,591,326.60-1,871,386,989.90-327,560,667.40

Finding the Fourth Proportional to 1,247,591,326.60, 1,871,386,989.90 and 327,560,667.40

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Solution

The fourth proportional to 1,247,591,326.60, 1,871,386,989.90 and 327,560,667.40 is: 491,341,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,591,326.60 : 1,871,386,989.90 = 327,560,667.40 : x
  2. Step 2: Convert to fraction form
    1,247,591,326.60/1,871,386,989.90 = 327,560,667.40/x
  3. Step 3: Cross multiply
    1,247,591,326.60x = 1,871,386,989.90 × 327,560,667.40
  4. Step 4: Simplify right side
    1,247,591,326.60x = 612,992,771,375,321,088
  5. Step 5: Solve for x
    x = 612,992,771,375,321,088/1,247,591,326.60
  6. Step 6: Final answer
    x = 491,341,001.10

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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.