Home / 1,276,517,792.58-1,912,095,202.35-809,939,050.79

Finding the Fourth Proportional to 1,276,517,792.58, 1,912,095,202.35 and 809,939,050.79

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Solution

The fourth proportional to 1,276,517,792.58, 1,912,095,202.35 and 809,939,050.79 is: 1,213,207,197.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,517,792.58 : 1,912,095,202.35 = 809,939,050.79 : x
  2. Step 2: Convert to fraction form
    1,276,517,792.58/1,912,095,202.35 = 809,939,050.79/x
  3. Step 3: Cross multiply
    1,276,517,792.58x = 1,912,095,202.35 × 809,939,050.79
  4. Step 4: Simplify right side
    1,276,517,792.58x = 1,548,680,573,201,911,296
  5. Step 5: Solve for x
    x = 1,548,680,573,201,911,296/1,276,517,792.58
  6. Step 6: Final answer
    x = 1,213,207,197.11

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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.