Home / 287,078,058.56-396,169,713.72-163,318,735.69

Finding the Fourth Proportional to 287,078,058.56, 396,169,713.72 and 163,318,735.69

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Solution

The fourth proportional to 287,078,058.56, 396,169,713.72 and 163,318,735.69 is: 225,380,989.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,078,058.56 : 396,169,713.72 = 163,318,735.69 : x
  2. Step 2: Convert to fraction form
    287,078,058.56/396,169,713.72 = 163,318,735.69/x
  3. Step 3: Cross multiply
    287,078,058.56x = 396,169,713.72 × 163,318,735.69
  4. Step 4: Simplify right side
    287,078,058.56x = 64,701,936,762,429,224
  5. Step 5: Solve for x
    x = 64,701,936,762,429,224/287,078,058.56
  6. Step 6: Final answer
    x = 225,380,989.01

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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.