Home / 778,045,294.01-1,073,699,295.76-420,813,469.57

Finding the Fourth Proportional to 778,045,294.01, 1,073,699,295.76 and 420,813,469.57

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Solution

The fourth proportional to 778,045,294.01, 1,073,699,295.76 and 420,813,469.57 is: 580,720,851.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,045,294.01 : 1,073,699,295.76 = 420,813,469.57 : x
  2. Step 2: Convert to fraction form
    778,045,294.01/1,073,699,295.76 = 420,813,469.57/x
  3. Step 3: Cross multiply
    778,045,294.01x = 1,073,699,295.76 × 420,813,469.57
  4. Step 4: Simplify right side
    778,045,294.01x = 451,827,125,923,631,168
  5. Step 5: Solve for x
    x = 451,827,125,923,631,168/778,045,294.01
  6. Step 6: Final answer
    x = 580,720,851.86

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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.