Home / 289,282,464.40-399,203,011.08-170,212,768.76

Finding the Fourth Proportional to 289,282,464.40, 399,203,011.08 and 170,212,768.76

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Solution

The fourth proportional to 289,282,464.40, 399,203,011.08 and 170,212,768.76 is: 234,889,625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,282,464.40 : 399,203,011.08 = 170,212,768.76 : x
  2. Step 2: Convert to fraction form
    289,282,464.40/399,203,011.08 = 170,212,768.76/x
  3. Step 3: Cross multiply
    289,282,464.40x = 399,203,011.08 × 170,212,768.76
  4. Step 4: Simplify right side
    289,282,464.40x = 67,949,449,811,259,736
  5. Step 5: Solve for x
    x = 67,949,449,811,259,736/289,282,464.40
  6. Step 6: Final answer
    x = 234,889,625.79

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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.