Home / 393,403,542.55-543,141,898.35-250,429,976.56

Finding the Fourth Proportional to 393,403,542.55, 543,141,898.35 and 250,429,976.56

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Solution

The fourth proportional to 393,403,542.55, 543,141,898.35 and 250,429,976.56 is: 345,749,334.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,403,542.55 : 543,141,898.35 = 250,429,976.56 : x
  2. Step 2: Convert to fraction form
    393,403,542.55/543,141,898.35 = 250,429,976.56/x
  3. Step 3: Cross multiply
    393,403,542.55x = 543,141,898.35 × 250,429,976.56
  4. Step 4: Simplify right side
    393,403,542.55x = 136,019,012,872,544,416
  5. Step 5: Solve for x
    x = 136,019,012,872,544,416/393,403,542.55
  6. Step 6: Final answer
    x = 345,749,334.11

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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.