Home / 159,717,876.16-220,410,816.08-86,379,018.16

Finding the Fourth Proportional to 159,717,876.16, 220,410,816.08 and 86,379,018.16

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Solution

The fourth proportional to 159,717,876.16, 220,410,816.08 and 86,379,018.16 is: 119,203,124.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,717,876.16 : 220,410,816.08 = 86,379,018.16 : x
  2. Step 2: Convert to fraction form
    159,717,876.16/220,410,816.08 = 86,379,018.16/x
  3. Step 3: Cross multiply
    159,717,876.16x = 220,410,816.08 × 86,379,018.16
  4. Step 4: Simplify right side
    159,717,876.16x = 19,038,869,884,834,740
  5. Step 5: Solve for x
    x = 19,038,869,884,834,740/159,717,876.16
  6. Step 6: Final answer
    x = 119,203,124.55

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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.