Home / 561,259,559.72-774,543,204.12-310,380,927.44

Finding the Fourth Proportional to 561,259,559.72, 774,543,204.12 and 310,380,927.44

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Solution

The fourth proportional to 561,259,559.72, 774,543,204.12 and 310,380,927.44 is: 428,328,451.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,259,559.72 : 774,543,204.12 = 310,380,927.44 : x
  2. Step 2: Convert to fraction form
    561,259,559.72/774,543,204.12 = 310,380,927.44/x
  3. Step 3: Cross multiply
    561,259,559.72x = 774,543,204.12 × 310,380,927.44
  4. Step 4: Simplify right side
    561,259,559.72x = 240,403,438,037,114,816
  5. Step 5: Solve for x
    x = 240,403,438,037,114,816/561,259,559.72
  6. Step 6: Final answer
    x = 428,328,451.38

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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.