Home / 154,163,945.88-212,759,699.62-84,562,778.81

Finding the Fourth Proportional to 154,163,945.88, 212,759,699.62 and 84,562,778.81

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Solution

The fourth proportional to 154,163,945.88, 212,759,699.62 and 84,562,778.81 is: 116,704,014.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,163,945.88 : 212,759,699.62 = 84,562,778.81 : x
  2. Step 2: Convert to fraction form
    154,163,945.88/212,759,699.62 = 84,562,778.81/x
  3. Step 3: Cross multiply
    154,163,945.88x = 212,759,699.62 × 84,562,778.81
  4. Step 4: Simplify right side
    154,163,945.88x = 17,991,551,418,648,102
  5. Step 5: Solve for x
    x = 17,991,551,418,648,102/154,163,945.88
  6. Step 6: Final answer
    x = 116,704,014.78

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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.