Home / 621,617,012.98-857,834,217.82-343,160,824.66

Finding the Fourth Proportional to 621,617,012.98, 857,834,217.82 and 343,160,824.66

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Solution

The fourth proportional to 621,617,012.98, 857,834,217.82 and 343,160,824.66 is: 473,563,450.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,617,012.98 : 857,834,217.82 = 343,160,824.66 : x
  2. Step 2: Convert to fraction form
    621,617,012.98/857,834,217.82 = 343,160,824.66/x
  3. Step 3: Cross multiply
    621,617,012.98x = 857,834,217.82 × 343,160,824.66
  4. Step 4: Simplify right side
    621,617,012.98x = 294,375,097,609,860,928
  5. Step 5: Solve for x
    x = 294,375,097,609,860,928/621,617,012.98
  6. Step 6: Final answer
    x = 473,563,450.58

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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.