Home / 159,036,409.80-238,554,614.70-128,803,321.80

Finding the Fourth Proportional to 159,036,409.80, 238,554,614.70 and 128,803,321.80

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Solution

The fourth proportional to 159,036,409.80, 238,554,614.70 and 128,803,321.80 is: 193,204,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,036,409.80 : 238,554,614.70 = 128,803,321.80 : x
  2. Step 2: Convert to fraction form
    159,036,409.80/238,554,614.70 = 128,803,321.80/x
  3. Step 3: Cross multiply
    159,036,409.80x = 238,554,614.70 × 128,803,321.80
  4. Step 4: Simplify right side
    159,036,409.80x = 30,726,626,804,079,108
  5. Step 5: Solve for x
    x = 30,726,626,804,079,108/159,036,409.80
  6. Step 6: Final answer
    x = 193,204,982.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.