Home / 1,287,975,087.20-1,932,270,866.40-414,658,091.90

Finding the Fourth Proportional to 1,287,975,087.20, 1,932,270,866.40 and 414,658,091.90

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Solution

The fourth proportional to 1,287,975,087.20, 1,932,270,866.40 and 414,658,091.90 is: 622,086,372.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,975,087.20 : 1,932,270,866.40 = 414,658,091.90 : x
  2. Step 2: Convert to fraction form
    1,287,975,087.20/1,932,270,866.40 = 414,658,091.90/x
  3. Step 3: Cross multiply
    1,287,975,087.20x = 1,932,270,866.40 × 414,658,091.90
  4. Step 4: Simplify right side
    1,287,975,087.20x = 801,231,750,495,383,808
  5. Step 5: Solve for x
    x = 801,231,750,495,383,808/1,287,975,087.20
  6. Step 6: Final answer
    x = 622,086,372.99

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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.