Home / 287,409,660.96-396,625,476.96-155,250,650.64

Finding the Fourth Proportional to 287,409,660.96, 396,625,476.96 and 155,250,650.64

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Solution

The fourth proportional to 287,409,660.96, 396,625,476.96 and 155,250,650.64 is: 214,245,976.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,409,660.96 : 396,625,476.96 = 155,250,650.64 : x
  2. Step 2: Convert to fraction form
    287,409,660.96/396,625,476.96 = 155,250,650.64/x
  3. Step 3: Cross multiply
    287,409,660.96x = 396,625,476.96 × 155,250,650.64
  4. Step 4: Simplify right side
    287,409,660.96x = 61,576,363,358,440,320
  5. Step 5: Solve for x
    x = 61,576,363,358,440,320/287,409,660.96
  6. Step 6: Final answer
    x = 214,245,976.12

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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.