Home / 782,919,704.75-1,079,426,231.51-641,269,092.56

Finding the Fourth Proportional to 782,919,704.75, 1,079,426,231.51 and 641,269,092.56

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Solution

The fourth proportional to 782,919,704.75, 1,079,426,231.51 and 641,269,092.56 is: 884,129,848.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,919,704.75 : 1,079,426,231.51 = 641,269,092.56 : x
  2. Step 2: Convert to fraction form
    782,919,704.75/1,079,426,231.51 = 641,269,092.56/x
  3. Step 3: Cross multiply
    782,919,704.75x = 1,079,426,231.51 × 641,269,092.56
  4. Step 4: Simplify right side
    782,919,704.75x = 692,202,679,957,274,752
  5. Step 5: Solve for x
    x = 692,202,679,957,274,752/782,919,704.75
  6. Step 6: Final answer
    x = 884,129,848.52

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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.