Home / 122,446,937.40-168,970,396.32-76,036,202.16

Finding the Fourth Proportional to 122,446,937.40, 168,970,396.32 and 76,036,202.16

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Solution

The fourth proportional to 122,446,937.40, 168,970,396.32 and 76,036,202.16 is: 104,925,998.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,446,937.40 : 168,970,396.32 = 76,036,202.16 : x
  2. Step 2: Convert to fraction form
    122,446,937.40/168,970,396.32 = 76,036,202.16/x
  3. Step 3: Cross multiply
    122,446,937.40x = 168,970,396.32 × 76,036,202.16
  4. Step 4: Simplify right side
    122,446,937.40x = 12,847,867,213,642,838
  5. Step 5: Solve for x
    x = 12,847,867,213,642,838/122,446,937.40
  6. Step 6: Final answer
    x = 104,925,998.86

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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.