Home / 643,410,481.44-887,835,419.91-361,088,169

Finding the Fourth Proportional to 643,410,481.44, 887,835,419.91 and 361,088,169

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Solution

The fourth proportional to 643,410,481.44, 887,835,419.91 and 361,088,169 is: 498,261,802.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,410,481.44 : 887,835,419.91 = 361,088,169 : x
  2. Step 2: Convert to fraction form
    643,410,481.44/887,835,419.91 = 361,088,169/x
  3. Step 3: Cross multiply
    643,410,481.44x = 887,835,419.91 × 361,088,169
  4. Step 4: Simplify right side
    643,410,481.44x = 320,586,866,148,648,064
  5. Step 5: Solve for x
    x = 320,586,866,148,648,064/643,410,481.44
  6. Step 6: Final answer
    x = 498,261,802.37

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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.