Home / 309,375,889.72-426,834,132.06-175,399,433.26

Finding the Fourth Proportional to 309,375,889.72, 426,834,132.06 and 175,399,433.26

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Solution

The fourth proportional to 309,375,889.72, 426,834,132.06 and 175,399,433.26 is: 241,991,917.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,375,889.72 : 426,834,132.06 = 175,399,433.26 : x
  2. Step 2: Convert to fraction form
    309,375,889.72/426,834,132.06 = 175,399,433.26/x
  3. Step 3: Cross multiply
    309,375,889.72x = 426,834,132.06 × 175,399,433.26
  4. Step 4: Simplify right side
    309,375,889.72x = 74,866,464,859,348,000
  5. Step 5: Solve for x
    x = 74,866,464,859,348,000/309,375,889.72
  6. Step 6: Final answer
    x = 241,991,917.75

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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.