Home / 513,798,780.29-770,525,443.87-186,205,704.73

Finding the Fourth Proportional to 513,798,780.29, 770,525,443.87 and 186,205,704.73

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Solution

The fourth proportional to 513,798,780.29, 770,525,443.87 and 186,205,704.73 is: 279,245,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,798,780.29 : 770,525,443.87 = 186,205,704.73 : x
  2. Step 2: Convert to fraction form
    513,798,780.29/770,525,443.87 = 186,205,704.73/x
  3. Step 3: Cross multiply
    513,798,780.29x = 770,525,443.87 × 186,205,704.73
  4. Step 4: Simplify right side
    513,798,780.29x = 143,476,233,285,817,568
  5. Step 5: Solve for x
    x = 143,476,233,285,817,568/513,798,780.29
  6. Step 6: Final answer
    x = 279,245,959.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.