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Finding the Fourth Proportional to 281,880,666.60, 422,820,999.90 and 281,880,666.60

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Solution

The fourth proportional to 281,880,666.60, 422,820,999.90 and 281,880,666.60 is: 422,820,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,880,666.60 : 422,820,999.90 = 281,880,666.60 : x
  2. Step 2: Convert to fraction form
    281,880,666.60/422,820,999.90 = 281,880,666.60/x
  3. Step 3: Cross multiply
    281,880,666.60x = 422,820,999.90 × 281,880,666.60
  4. Step 4: Simplify right side
    281,880,666.60x = 119,185,065,304,290,544
  5. Step 5: Solve for x
    x = 119,185,065,304,290,544/281,880,666.60
  6. Step 6: Final answer
    x = 422,820,999.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.