Home / 147,147,712.89-203,073,016.07-81,068,197.47

Finding the Fourth Proportional to 147,147,712.89, 203,073,016.07 and 81,068,197.47

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Solution

The fourth proportional to 147,147,712.89, 203,073,016.07 and 81,068,197.47 is: 111,879,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,147,712.89 : 203,073,016.07 = 81,068,197.47 : x
  2. Step 2: Convert to fraction form
    147,147,712.89/203,073,016.07 = 81,068,197.47/x
  3. Step 3: Cross multiply
    147,147,712.89x = 203,073,016.07 × 81,068,197.47
  4. Step 4: Simplify right side
    147,147,712.89x = 16,462,763,367,185,902
  5. Step 5: Solve for x
    x = 16,462,763,367,185,902/147,147,712.89
  6. Step 6: Final answer
    x = 111,879,165.80

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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.