Home / 519,865,109,639.40-717,149,821,209.95-339,529,577,013.53

Finding the Fourth Proportional to 519,865,109,639.40, 717,149,821,209.95 and 339,529,577,013.53

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Solution

The fourth proportional to 519,865,109,639.40, 717,149,821,209.95 and 339,529,577,013.53 is: 468,378,375,343.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,865,109,639.40 : 717,149,821,209.95 = 339,529,577,013.53 : x
  2. Step 2: Convert to fraction form
    519,865,109,639.40/717,149,821,209.95 = 339,529,577,013.53/x
  3. Step 3: Cross multiply
    519,865,109,639.40x = 717,149,821,209.95 × 339,529,577,013.53
  4. Step 4: Simplify right side
    519,865,109,639.40x = 243,493,575,450,743,004,987,392
  5. Step 5: Solve for x
    x = 243,493,575,450,743,004,987,392/519,865,109,639.40
  6. Step 6: Final answer
    x = 468,378,375,343.64

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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.