Home / 646,729,676.70-970,236,232.65-319,362,020.70

Finding the Fourth Proportional to 646,729,676.70, 970,236,232.65 and 319,362,020.70

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Solution

The fourth proportional to 646,729,676.70, 970,236,232.65 and 319,362,020.70 is: 479,113,012.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,729,676.70 : 970,236,232.65 = 319,362,020.70 : x
  2. Step 2: Convert to fraction form
    646,729,676.70/970,236,232.65 = 319,362,020.70/x
  3. Step 3: Cross multiply
    646,729,676.70x = 970,236,232.65 × 319,362,020.70
  4. Step 4: Simplify right side
    646,729,676.70x = 309,856,603,815,459,328
  5. Step 5: Solve for x
    x = 309,856,603,815,459,328/646,729,676.70
  6. Step 6: Final answer
    x = 479,113,012.71

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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.