Home / 805,871,251.20-1,208,806,876.80-260,667,897.60

Finding the Fourth Proportional to 805,871,251.20, 1,208,806,876.80 and 260,667,897.60

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Solution

The fourth proportional to 805,871,251.20, 1,208,806,876.80 and 260,667,897.60 is: 391,001,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,871,251.20 : 1,208,806,876.80 = 260,667,897.60 : x
  2. Step 2: Convert to fraction form
    805,871,251.20/1,208,806,876.80 = 260,667,897.60/x
  3. Step 3: Cross multiply
    805,871,251.20x = 1,208,806,876.80 × 260,667,897.60
  4. Step 4: Simplify right side
    805,871,251.20x = 315,097,147,179,878,208
  5. Step 5: Solve for x
    x = 315,097,147,179,878,208/805,871,251.20
  6. Step 6: Final answer
    x = 391,001,846.40

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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.