Home / 258,265,364.51-356,403,257.66-140,788,103.15

Finding the Fourth Proportional to 258,265,364.51, 356,403,257.66 and 140,788,103.15

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Solution

The fourth proportional to 258,265,364.51, 356,403,257.66 and 140,788,103.15 is: 194,285,976.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,265,364.51 : 356,403,257.66 = 140,788,103.15 : x
  2. Step 2: Convert to fraction form
    258,265,364.51/356,403,257.66 = 140,788,103.15/x
  3. Step 3: Cross multiply
    258,265,364.51x = 356,403,257.66 × 140,788,103.15
  4. Step 4: Simplify right side
    258,265,364.51x = 50,177,338,599,946,152
  5. Step 5: Solve for x
    x = 50,177,338,599,946,152/258,265,364.51
  6. Step 6: Final answer
    x = 194,285,976.74

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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.