Home / 809,859,367.35-1,117,600,362.41-438,572,902.23

Finding the Fourth Proportional to 809,859,367.35, 1,117,600,362.41 and 438,572,902.23

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Solution

The fourth proportional to 809,859,367.35, 1,117,600,362.41 and 438,572,902.23 is: 605,227,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,859,367.35 : 1,117,600,362.41 = 438,572,902.23 : x
  2. Step 2: Convert to fraction form
    809,859,367.35/1,117,600,362.41 = 438,572,902.23/x
  3. Step 3: Cross multiply
    809,859,367.35x = 1,117,600,362.41 × 438,572,902.23
  4. Step 4: Simplify right side
    809,859,367.35x = 490,149,234,473,260,672
  5. Step 5: Solve for x
    x = 490,149,234,473,260,672/809,859,367.35
  6. Step 6: Final answer
    x = 605,227,591.65

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Double scale
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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.