Home / 859,776,003.20-1,289,664,004.80-213,543,747.20

Finding the Fourth Proportional to 859,776,003.20, 1,289,664,004.80 and 213,543,747.20

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Solution

The fourth proportional to 859,776,003.20, 1,289,664,004.80 and 213,543,747.20 is: 320,315,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,776,003.20 : 1,289,664,004.80 = 213,543,747.20 : x
  2. Step 2: Convert to fraction form
    859,776,003.20/1,289,664,004.80 = 213,543,747.20/x
  3. Step 3: Cross multiply
    859,776,003.20x = 1,289,664,004.80 × 213,543,747.20
  4. Step 4: Simplify right side
    859,776,003.20x = 275,399,684,213,950,752
  5. Step 5: Solve for x
    x = 275,399,684,213,950,752/859,776,003.20
  6. Step 6: Final answer
    x = 320,315,620.80

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1.5x scale

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.