Home / 769,796,641.28-1,061,291,652.48-611,551,823.36

Finding the Fourth Proportional to 769,796,641.28, 1,061,291,652.48 and 611,551,823.36

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Solution

The fourth proportional to 769,796,641.28, 1,061,291,652.48 and 611,551,823.36 is: 843,125,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,796,641.28 : 1,061,291,652.48 = 611,551,823.36 : x
  2. Step 2: Convert to fraction form
    769,796,641.28/1,061,291,652.48 = 611,551,823.36/x
  3. Step 3: Cross multiply
    769,796,641.28x = 1,061,291,652.48 × 611,551,823.36
  4. Step 4: Simplify right side
    769,796,641.28x = 649,034,845,190,891,520
  5. Step 5: Solve for x
    x = 649,034,845,190,891,520/769,796,641.28
  6. Step 6: Final answer
    x = 843,125,067.57

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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.