Home / 287,008,095.48-395,859,712.92-216,446,679.33

Finding the Fourth Proportional to 287,008,095.48, 395,859,712.92 and 216,446,679.33

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Solution

The fourth proportional to 287,008,095.48, 395,859,712.92 and 216,446,679.33 is: 298,536,946.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,008,095.48 : 395,859,712.92 = 216,446,679.33 : x
  2. Step 2: Convert to fraction form
    287,008,095.48/395,859,712.92 = 216,446,679.33/x
  3. Step 3: Cross multiply
    287,008,095.48x = 395,859,712.92 × 216,446,679.33
  4. Step 4: Simplify right side
    287,008,095.48x = 85,682,520,342,061,104
  5. Step 5: Solve for x
    x = 85,682,520,342,061,104/287,008,095.48
  6. Step 6: Final answer
    x = 298,536,946.14

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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.