Home / 206,718,121.28-285,277,468.88-118,628,232.64

Finding the Fourth Proportional to 206,718,121.28, 285,277,468.88 and 118,628,232.64

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Solution

The fourth proportional to 206,718,121.28, 285,277,468.88 and 118,628,232.64 is: 163,710,669.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,718,121.28 : 285,277,468.88 = 118,628,232.64 : x
  2. Step 2: Convert to fraction form
    206,718,121.28/285,277,468.88 = 118,628,232.64/x
  3. Step 3: Cross multiply
    206,718,121.28x = 285,277,468.88 × 118,628,232.64
  4. Step 4: Simplify right side
    206,718,121.28x = 33,841,961,945,247,000
  5. Step 5: Solve for x
    x = 33,841,961,945,247,000/206,718,121.28
  6. Step 6: Final answer
    x = 163,710,669.08

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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.