Home / 215,340,994.05-297,171,782.43-122,521,501.89

Finding the Fourth Proportional to 215,340,994.05, 297,171,782.43 and 122,521,501.89

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Solution

The fourth proportional to 215,340,994.05, 297,171,782.43 and 122,521,501.89 is: 169,080,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,340,994.05 : 297,171,782.43 = 122,521,501.89 : x
  2. Step 2: Convert to fraction form
    215,340,994.05/297,171,782.43 = 122,521,501.89/x
  3. Step 3: Cross multiply
    215,340,994.05x = 297,171,782.43 × 122,521,501.89
  4. Step 4: Simplify right side
    215,340,994.05x = 36,409,933,102,651,912
  5. Step 5: Solve for x
    x = 36,409,933,102,651,912/215,340,994.05
  6. Step 6: Final answer
    x = 169,080,361.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.