Home / 309,375,890.72-426,834,133.44-175,399,434.26

Finding the Fourth Proportional to 309,375,890.72, 426,834,133.44 and 175,399,434.26

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Solution

The fourth proportional to 309,375,890.72, 426,834,133.44 and 175,399,434.26 is: 241,991,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,375,890.72 : 426,834,133.44 = 175,399,434.26 : x
  2. Step 2: Convert to fraction form
    309,375,890.72/426,834,133.44 = 175,399,434.26/x
  3. Step 3: Cross multiply
    309,375,890.72x = 426,834,133.44 × 175,399,434.26
  4. Step 4: Simplify right side
    309,375,890.72x = 74,866,465,528,233,344
  5. Step 5: Solve for x
    x = 74,866,465,528,233,344/309,375,890.72
  6. Step 6: Final answer
    x = 241,991,919.13

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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.