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Finding the Fourth Proportional to 158,492,728.80, 221,436,324 and 158,492,728.80

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Solution

The fourth proportional to 158,492,728.80, 221,436,324 and 158,492,728.80 is: 221,436,324

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,492,728.80 : 221,436,324 = 158,492,728.80 : x
  2. Step 2: Convert to fraction form
    158,492,728.80/221,436,324 = 158,492,728.80/x
  3. Step 3: Cross multiply
    158,492,728.80x = 221,436,324 × 158,492,728.80
  4. Step 4: Simplify right side
    158,492,728.80x = 35,096,047,246,200,932
  5. Step 5: Solve for x
    x = 35,096,047,246,200,932/158,492,728.80
  6. Step 6: Final answer
    x = 221,436,324

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.