Home / 812,051,930.20-1,120,602,663.44-459,620,353.44

Finding the Fourth Proportional to 812,051,930.20, 1,120,602,663.44 and 459,620,353.44

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Solution

The fourth proportional to 812,051,930.20, 1,120,602,663.44 and 459,620,353.44 is: 634,259,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,051,930.20 : 1,120,602,663.44 = 459,620,353.44 : x
  2. Step 2: Convert to fraction form
    812,051,930.20/1,120,602,663.44 = 459,620,353.44/x
  3. Step 3: Cross multiply
    812,051,930.20x = 1,120,602,663.44 × 459,620,353.44
  4. Step 4: Simplify right side
    812,051,930.20x = 515,051,792,236,098,176
  5. Step 5: Solve for x
    x = 515,051,792,236,098,176/812,051,930.20
  6. Step 6: Final answer
    x = 634,259,673.65

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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.