Home / 516,320,238.20-712,501,196.54-281,365,891

Finding the Fourth Proportional to 516,320,238.20, 712,501,196.54 and 281,365,891

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Solution

The fourth proportional to 516,320,238.20, 712,501,196.54 and 281,365,891 is: 388,273,631.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,320,238.20 : 712,501,196.54 = 281,365,891 : x
  2. Step 2: Convert to fraction form
    516,320,238.20/712,501,196.54 = 281,365,891/x
  3. Step 3: Cross multiply
    516,320,238.20x = 712,501,196.54 × 281,365,891
  4. Step 4: Simplify right side
    516,320,238.20x = 200,473,534,003,043,200
  5. Step 5: Solve for x
    x = 200,473,534,003,043,200/516,320,238.20
  6. Step 6: Final answer
    x = 388,273,631.69

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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.