Home / 647,032,938.96-970,932,920.76-238,375,834.32

Finding the Fourth Proportional to 647,032,938.96, 970,932,920.76 and 238,375,834.32

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Solution

The fourth proportional to 647,032,938.96, 970,932,920.76 and 238,375,834.32 is: 357,705,042.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,032,938.96 : 970,932,920.76 = 238,375,834.32 : x
  2. Step 2: Convert to fraction form
    647,032,938.96/970,932,920.76 = 238,375,834.32/x
  3. Step 3: Cross multiply
    647,032,938.96x = 970,932,920.76 × 238,375,834.32
  4. Step 4: Simplify right side
    647,032,938.96x = 231,446,945,054,919,424
  5. Step 5: Solve for x
    x = 231,446,945,054,919,424/647,032,938.96
  6. Step 6: Final answer
    x = 357,705,042.69

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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.