Home / 208,008,327.20-312,012,490.80-147,542,151.20

Finding the Fourth Proportional to 208,008,327.20, 312,012,490.80 and 147,542,151.20

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Solution

The fourth proportional to 208,008,327.20, 312,012,490.80 and 147,542,151.20 is: 221,313,226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,008,327.20 : 312,012,490.80 = 147,542,151.20 : x
  2. Step 2: Convert to fraction form
    208,008,327.20/312,012,490.80 = 147,542,151.20/x
  3. Step 3: Cross multiply
    208,008,327.20x = 312,012,490.80 × 147,542,151.20
  4. Step 4: Simplify right side
    208,008,327.20x = 46,034,994,093,902,208
  5. Step 5: Solve for x
    x = 46,034,994,093,902,208/208,008,327.20
  6. Step 6: Final answer
    x = 221,313,226.80

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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.