Home / 1,302,900,394,705.90-1,954,633,315,322.20-396,314,640,490.66

Finding the Fourth Proportional to 1,302,900,394,705.90, 1,954,633,315,322.20 and 396,314,640,490.66

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Solution

The fourth proportional to 1,302,900,394,705.90, 1,954,633,315,322.20 and 396,314,640,490.66 is: 594,557,959,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,900,394,705.90 : 1,954,633,315,322.20 = 396,314,640,490.66 : x
  2. Step 2: Convert to fraction form
    1,302,900,394,705.90/1,954,633,315,322.20 = 396,314,640,490.66/x
  3. Step 3: Cross multiply
    1,302,900,394,705.90x = 1,954,633,315,322.20 × 396,314,640,490.66
  4. Step 4: Simplify right side
    1,302,900,394,705.90x = 774,649,799,652,984,483,741,696
  5. Step 5: Solve for x
    x = 774,649,799,652,984,483,741,696/1,302,900,394,705.90
  6. Step 6: Final answer
    x = 594,557,959,150.70

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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.