Home / 647,619,854.20-971,093,858.10-238,465,396.60

Finding the Fourth Proportional to 647,619,854.20, 971,093,858.10 and 238,465,396.60

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Solution

The fourth proportional to 647,619,854.20, 971,093,858.10 and 238,465,396.60 is: 357,574,401.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,619,854.20 : 971,093,858.10 = 238,465,396.60 : x
  2. Step 2: Convert to fraction form
    647,619,854.20/971,093,858.10 = 238,465,396.60/x
  3. Step 3: Cross multiply
    647,619,854.20x = 971,093,858.10 × 238,465,396.60
  4. Step 4: Simplify right side
    647,619,854.20x = 231,572,282,007,640,608
  5. Step 5: Solve for x
    x = 231,572,282,007,640,608/647,619,854.20
  6. Step 6: Final answer
    x = 357,574,401.87

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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.