Home / 419,905,513.80-629,858,270.70-147,240,851.40

Finding the Fourth Proportional to 419,905,513.80, 629,858,270.70 and 147,240,851.40

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Solution

The fourth proportional to 419,905,513.80, 629,858,270.70 and 147,240,851.40 is: 220,861,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,513.80 : 629,858,270.70 = 147,240,851.40 : x
  2. Step 2: Convert to fraction form
    419,905,513.80/629,858,270.70 = 147,240,851.40/x
  3. Step 3: Cross multiply
    419,905,513.80x = 629,858,270.70 × 147,240,851.40
  4. Step 4: Simplify right side
    419,905,513.80x = 92,740,868,039,199,680
  5. Step 5: Solve for x
    x = 92,740,868,039,199,680/419,905,513.80
  6. Step 6: Final answer
    x = 220,861,277.10

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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.