Home / 12,861,419,285.83-19,289,989,141.46-3,895,476,859.20

Finding the Fourth Proportional to 12,861,419,285.83, 19,289,989,141.46 and 3,895,476,859.20

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Solution

The fourth proportional to 12,861,419,285.83, 19,289,989,141.46 and 3,895,476,859.20 is: 5,842,567,188.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861,419,285.83 : 19,289,989,141.46 = 3,895,476,859.20 : x
  2. Step 2: Convert to fraction form
    12,861,419,285.83/19,289,989,141.46 = 3,895,476,859.20/x
  3. Step 3: Cross multiply
    12,861,419,285.83x = 19,289,989,141.46 × 3,895,476,859.20
  4. Step 4: Simplify right side
    12,861,419,285.83x = 75,143,706,314,842,226,688
  5. Step 5: Solve for x
    x = 75,143,706,314,842,226,688/12,861,419,285.83
  6. Step 6: Final answer
    x = 5,842,567,188.34

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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.