Home / 670,247,175.40-1,005,370,763.10-621,874,234.60

Finding the Fourth Proportional to 670,247,175.40, 1,005,370,763.10 and 621,874,234.60

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Solution

The fourth proportional to 670,247,175.40, 1,005,370,763.10 and 621,874,234.60 is: 932,811,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,247,175.40 : 1,005,370,763.10 = 621,874,234.60 : x
  2. Step 2: Convert to fraction form
    670,247,175.40/1,005,370,763.10 = 621,874,234.60/x
  3. Step 3: Cross multiply
    670,247,175.40x = 1,005,370,763.10 × 621,874,234.60
  4. Step 4: Simplify right side
    670,247,175.40x = 625,214,173,792,030,464
  5. Step 5: Solve for x
    x = 625,214,173,792,030,464/670,247,175.40
  6. Step 6: Final answer
    x = 932,811,351.90

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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.