Home / 151,687,875.08-209,327,777.34-82,071,728.48

Finding the Fourth Proportional to 151,687,875.08, 209,327,777.34 and 82,071,728.48

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Solution

The fourth proportional to 151,687,875.08, 209,327,777.34 and 82,071,728.48 is: 113,258,178.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,687,875.08 : 209,327,777.34 = 82,071,728.48 : x
  2. Step 2: Convert to fraction form
    151,687,875.08/209,327,777.34 = 82,071,728.48/x
  3. Step 3: Cross multiply
    151,687,875.08x = 209,327,777.34 × 82,071,728.48
  4. Step 4: Simplify right side
    151,687,875.08x = 17,179,892,505,170,378
  5. Step 5: Solve for x
    x = 17,179,892,505,170,378/151,687,875.08
  6. Step 6: Final answer
    x = 113,258,178.98

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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.