Home / 621,422,211-857,550,495.47-339,166,675.09

Finding the Fourth Proportional to 621,422,211, 857,550,495.47 and 339,166,675.09

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Solution

The fourth proportional to 621,422,211, 857,550,495.47 and 339,166,675.09 is: 468,043,377.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,422,211 : 857,550,495.47 = 339,166,675.09 : x
  2. Step 2: Convert to fraction form
    621,422,211/857,550,495.47 = 339,166,675.09/x
  3. Step 3: Cross multiply
    621,422,211x = 857,550,495.47 × 339,166,675.09
  4. Step 4: Simplify right side
    621,422,211x = 290,852,550,268,646,144
  5. Step 5: Solve for x
    x = 290,852,550,268,646,144/621,422,211
  6. Step 6: Final answer
    x = 468,043,377.14

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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.