Home / 500,365,560.69-690,503,278.32-274,304,140.56

Finding the Fourth Proportional to 500,365,560.69, 690,503,278.32 and 274,304,140.56

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Solution

The fourth proportional to 500,365,560.69, 690,503,278.32 and 274,304,140.56 is: 378,539,058.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,365,560.69 : 690,503,278.32 = 274,304,140.56 : x
  2. Step 2: Convert to fraction form
    500,365,560.69/690,503,278.32 = 274,304,140.56/x
  3. Step 3: Cross multiply
    500,365,560.69x = 690,503,278.32 × 274,304,140.56
  4. Step 4: Simplify right side
    500,365,560.69x = 189,407,908,313,430,112
  5. Step 5: Solve for x
    x = 189,407,908,313,430,112/500,365,560.69
  6. Step 6: Final answer
    x = 378,539,058.63

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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.