Home / 70,009,906.84-105,014,015.53-18,189,923.56

Finding the Fourth Proportional to 70,009,906.84, 105,014,015.53 and 18,189,923.56

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Solution

The fourth proportional to 70,009,906.84, 105,014,015.53 and 18,189,923.56 is: 27,284,665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,009,906.84 : 105,014,015.53 = 18,189,923.56 : x
  2. Step 2: Convert to fraction form
    70,009,906.84/105,014,015.53 = 18,189,923.56/x
  3. Step 3: Cross multiply
    70,009,906.84x = 105,014,015.53 × 18,189,923.56
  4. Step 4: Simplify right side
    70,009,906.84x = 1,910,196,914,911,343.25
  5. Step 5: Solve for x
    x = 1,910,196,914,911,343.25/70,009,906.84
  6. Step 6: Final answer
    x = 27,284,665.86

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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.