Home / 159,717,874.16-220,410,813.32-86,379,016.16

Finding the Fourth Proportional to 159,717,874.16, 220,410,813.32 and 86,379,016.16

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Solution

The fourth proportional to 159,717,874.16, 220,410,813.32 and 86,379,016.16 is: 119,203,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,717,874.16 : 220,410,813.32 = 86,379,016.16 : x
  2. Step 2: Convert to fraction form
    159,717,874.16/220,410,813.32 = 86,379,016.16/x
  3. Step 3: Cross multiply
    159,717,874.16x = 220,410,813.32 × 86,379,016.16
  4. Step 4: Simplify right side
    159,717,874.16x = 19,038,869,205,607,020
  5. Step 5: Solve for x
    x = 19,038,869,205,607,020/159,717,874.16
  6. Step 6: Final answer
    x = 119,203,121.79

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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.