Home / 809,045,968.92-1,116,289,273.50-491,499,867.48

Finding the Fourth Proportional to 809,045,968.92, 1,116,289,273.50 and 491,499,867.48

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Solution

The fourth proportional to 809,045,968.92, 1,116,289,273.50 and 491,499,867.48 is: 678,151,861.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,045,968.92 : 1,116,289,273.50 = 491,499,867.48 : x
  2. Step 2: Convert to fraction form
    809,045,968.92/1,116,289,273.50 = 491,499,867.48/x
  3. Step 3: Cross multiply
    809,045,968.92x = 1,116,289,273.50 × 491,499,867.48
  4. Step 4: Simplify right side
    809,045,968.92x = 548,656,029,994,595,520
  5. Step 5: Solve for x
    x = 548,656,029,994,595,520/809,045,968.92
  6. Step 6: Final answer
    x = 678,151,861.66

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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.