Home / 670,247,190.40-1,005,370,785.60-621,874,249.60

Finding the Fourth Proportional to 670,247,190.40, 1,005,370,785.60 and 621,874,249.60

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Solution

The fourth proportional to 670,247,190.40, 1,005,370,785.60 and 621,874,249.60 is: 932,811,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,247,190.40 : 1,005,370,785.60 = 621,874,249.60 : x
  2. Step 2: Convert to fraction form
    670,247,190.40/1,005,370,785.60 = 621,874,249.60/x
  3. Step 3: Cross multiply
    670,247,190.40x = 1,005,370,785.60 × 621,874,249.60
  4. Step 4: Simplify right side
    670,247,190.40x = 625,214,202,864,762,496
  5. Step 5: Solve for x
    x = 625,214,202,864,762,496/670,247,190.40
  6. Step 6: Final answer
    x = 932,811,374.40

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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.