Home / 628,394,648.09-867,152,563.56-346,131,012.53

Finding the Fourth Proportional to 628,394,648.09, 867,152,563.56 and 346,131,012.53

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Solution

The fourth proportional to 628,394,648.09, 867,152,563.56 and 346,131,012.53 is: 477,643,143.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,394,648.09 : 867,152,563.56 = 346,131,012.53 : x
  2. Step 2: Convert to fraction form
    628,394,648.09/867,152,563.56 = 346,131,012.53/x
  3. Step 3: Cross multiply
    628,394,648.09x = 867,152,563.56 × 346,131,012.53
  4. Step 4: Simplify right side
    628,394,648.09x = 300,148,394,845,175,872
  5. Step 5: Solve for x
    x = 300,148,394,845,175,872/628,394,648.09
  6. Step 6: Final answer
    x = 477,643,143.14

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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.