Home / 159,717,873.15-220,410,811.92-86,379,015.15

Finding the Fourth Proportional to 159,717,873.15, 220,410,811.92 and 86,379,015.15

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Solution

The fourth proportional to 159,717,873.15, 220,410,811.92 and 86,379,015.15 is: 119,203,120.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,717,873.15 : 220,410,811.92 = 86,379,015.15 : x
  2. Step 2: Convert to fraction form
    159,717,873.15/220,410,811.92 = 86,379,015.15/x
  3. Step 3: Cross multiply
    159,717,873.15x = 220,410,811.92 × 86,379,015.15
  4. Step 4: Simplify right side
    159,717,873.15x = 19,038,868,862,061,480
  5. Step 5: Solve for x
    x = 19,038,868,862,061,480/159,717,873.15
  6. Step 6: Final answer
    x = 119,203,120.39

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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.