Home / 809,816,610.78-1,117,548,000.63-438,539,282.46

Finding the Fourth Proportional to 809,816,610.78, 1,117,548,000.63 and 438,539,282.46

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Solution

The fourth proportional to 809,816,610.78, 1,117,548,000.63 and 438,539,282.46 is: 605,184,793.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,816,610.78 : 1,117,548,000.63 = 438,539,282.46 : x
  2. Step 2: Convert to fraction form
    809,816,610.78/1,117,548,000.63 = 438,539,282.46/x
  3. Step 3: Cross multiply
    809,816,610.78x = 1,117,548,000.63 × 438,539,282.46
  4. Step 4: Simplify right side
    809,816,610.78x = 490,088,698,310,887,872
  5. Step 5: Solve for x
    x = 490,088,698,310,887,872/809,816,610.78
  6. Step 6: Final answer
    x = 605,184,793.43

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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.