Home / 911,667,999.60-1,367,501,999.40-265,456,825.20

Finding the Fourth Proportional to 911,667,999.60, 1,367,501,999.40 and 265,456,825.20

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Solution

The fourth proportional to 911,667,999.60, 1,367,501,999.40 and 265,456,825.20 is: 398,185,237.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,667,999.60 : 1,367,501,999.40 = 265,456,825.20 : x
  2. Step 2: Convert to fraction form
    911,667,999.60/1,367,501,999.40 = 265,456,825.20/x
  3. Step 3: Cross multiply
    911,667,999.60x = 1,367,501,999.40 × 265,456,825.20
  4. Step 4: Simplify right side
    911,667,999.60x = 363,012,739,215,376,320
  5. Step 5: Solve for x
    x = 363,012,739,215,376,320/911,667,999.60
  6. Step 6: Final answer
    x = 398,185,237.80

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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.