Home / 287,011,520.33-395,864,417.16-216,450,100.73

Finding the Fourth Proportional to 287,011,520.33, 395,864,417.16 and 216,450,100.73

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Solution

The fourth proportional to 287,011,520.33, 395,864,417.16 and 216,450,100.73 is: 298,541,650.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,011,520.33 : 395,864,417.16 = 216,450,100.73 : x
  2. Step 2: Convert to fraction form
    287,011,520.33/395,864,417.16 = 216,450,100.73/x
  3. Step 3: Cross multiply
    287,011,520.33x = 395,864,417.16 × 216,450,100.73
  4. Step 4: Simplify right side
    287,011,520.33x = 85,684,892,967,725,424
  5. Step 5: Solve for x
    x = 85,684,892,967,725,424/287,011,520.33
  6. Step 6: Final answer
    x = 298,541,650.42

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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.