Home / 160,397,774.28-221,310,986.76-90,783,155.16

Finding the Fourth Proportional to 160,397,774.28, 221,310,986.76 and 90,783,155.16

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Solution

The fourth proportional to 160,397,774.28, 221,310,986.76 and 90,783,155.16 is: 125,259,279.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,397,774.28 : 221,310,986.76 = 90,783,155.16 : x
  2. Step 2: Convert to fraction form
    160,397,774.28/221,310,986.76 = 90,783,155.16/x
  3. Step 3: Cross multiply
    160,397,774.28x = 221,310,986.76 × 90,783,155.16
  4. Step 4: Simplify right side
    160,397,774.28x = 20,091,309,649,645,784
  5. Step 5: Solve for x
    x = 20,091,309,649,645,784/160,397,774.28
  6. Step 6: Final answer
    x = 125,259,279.56

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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.