Home / 159,438,721.78-239,158,085.46-38,270,173.78

Finding the Fourth Proportional to 159,438,721.78, 239,158,085.46 and 38,270,173.78

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Solution

The fourth proportional to 159,438,721.78, 239,158,085.46 and 38,270,173.78 is: 57,405,261.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,438,721.78 : 239,158,085.46 = 38,270,173.78 : x
  2. Step 2: Convert to fraction form
    159,438,721.78/239,158,085.46 = 38,270,173.78/x
  3. Step 3: Cross multiply
    159,438,721.78x = 239,158,085.46 × 38,270,173.78
  4. Step 4: Simplify right side
    159,438,721.78x = 9,152,621,491,446,292
  5. Step 5: Solve for x
    x = 9,152,621,491,446,292/159,438,721.78
  6. Step 6: Final answer
    x = 57,405,261.34

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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.