Home / 309,375,884.72-426,834,125.16-175,399,428.26

Finding the Fourth Proportional to 309,375,884.72, 426,834,125.16 and 175,399,428.26

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Solution

The fourth proportional to 309,375,884.72, 426,834,125.16 and 175,399,428.26 is: 241,991,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,375,884.72 : 426,834,125.16 = 175,399,428.26 : x
  2. Step 2: Convert to fraction form
    309,375,884.72/426,834,125.16 = 175,399,428.26/x
  3. Step 3: Cross multiply
    309,375,884.72x = 426,834,125.16 × 175,399,428.26
  4. Step 4: Simplify right side
    309,375,884.72x = 74,866,461,514,921,280
  5. Step 5: Solve for x
    x = 74,866,461,514,921,280/309,375,884.72
  6. Step 6: Final answer
    x = 241,991,910.85

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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.