Home / 1,048,142,728.80-1,572,214,093.20-321,036,962.40

Finding the Fourth Proportional to 1,048,142,728.80, 1,572,214,093.20 and 321,036,962.40

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Solution

The fourth proportional to 1,048,142,728.80, 1,572,214,093.20 and 321,036,962.40 is: 481,555,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,142,728.80 : 1,572,214,093.20 = 321,036,962.40 : x
  2. Step 2: Convert to fraction form
    1,048,142,728.80/1,572,214,093.20 = 321,036,962.40/x
  3. Step 3: Cross multiply
    1,048,142,728.80x = 1,572,214,093.20 × 321,036,962.40
  4. Step 4: Simplify right side
    1,048,142,728.80x = 504,738,836,723,398,464
  5. Step 5: Solve for x
    x = 504,738,836,723,398,464/1,048,142,728.80
  6. Step 6: Final answer
    x = 481,555,443.60

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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.