Home / 813,339,743.12-1,122,420,212.52-442,061,663.12

Finding the Fourth Proportional to 813,339,743.12, 1,122,420,212.52 and 442,061,663.12

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Solution

The fourth proportional to 813,339,743.12, 1,122,420,212.52 and 442,061,663.12 is: 610,051,273.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,339,743.12 : 1,122,420,212.52 = 442,061,663.12 : x
  2. Step 2: Convert to fraction form
    813,339,743.12/1,122,420,212.52 = 442,061,663.12/x
  3. Step 3: Cross multiply
    813,339,743.12x = 1,122,420,212.52 × 442,061,663.12
  4. Step 4: Simplify right side
    813,339,743.12x = 496,178,945,866,095,040
  5. Step 5: Solve for x
    x = 496,178,945,866,095,040/813,339,743.12
  6. Step 6: Final answer
    x = 610,051,273.24

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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.