Home / 782,405,999.10-1,173,608,998.65-207,977,327.10

Finding the Fourth Proportional to 782,405,999.10, 1,173,608,998.65 and 207,977,327.10

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Solution

The fourth proportional to 782,405,999.10, 1,173,608,998.65 and 207,977,327.10 is: 311,965,990.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,405,999.10 : 1,173,608,998.65 = 207,977,327.10 : x
  2. Step 2: Convert to fraction form
    782,405,999.10/1,173,608,998.65 = 207,977,327.10/x
  3. Step 3: Cross multiply
    782,405,999.10x = 1,173,608,998.65 × 207,977,327.10
  4. Step 4: Simplify right side
    782,405,999.10x = 244,084,062,599,734,528
  5. Step 5: Solve for x
    x = 244,084,062,599,734,528/782,405,999.10
  6. Step 6: Final answer
    x = 311,965,990.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.