Home / 419,907,631.80-629,861,447.70-147,242,969.40

Finding the Fourth Proportional to 419,907,631.80, 629,861,447.70 and 147,242,969.40

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Solution

The fourth proportional to 419,907,631.80, 629,861,447.70 and 147,242,969.40 is: 220,864,454.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,907,631.80 : 629,861,447.70 = 147,242,969.40 : x
  2. Step 2: Convert to fraction form
    419,907,631.80/629,861,447.70 = 147,242,969.40/x
  3. Step 3: Cross multiply
    419,907,631.80x = 629,861,447.70 × 147,242,969.40
  4. Step 4: Simplify right side
    419,907,631.80x = 92,742,669,869,930,816
  5. Step 5: Solve for x
    x = 92,742,669,869,930,816/419,907,631.80
  6. Step 6: Final answer
    x = 220,864,454.10

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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.