Home / 69,823,904.25-104,738,804.20-20,639,870.08

Finding the Fourth Proportional to 69,823,904.25, 104,738,804.20 and 20,639,870.08

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Solution

The fourth proportional to 69,823,904.25, 104,738,804.20 and 20,639,870.08 is: 30,960,676.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,823,904.25 : 104,738,804.20 = 20,639,870.08 : x
  2. Step 2: Convert to fraction form
    69,823,904.25/104,738,804.20 = 20,639,870.08/x
  3. Step 3: Cross multiply
    69,823,904.25x = 104,738,804.20 × 20,639,870.08
  4. Step 4: Simplify right side
    69,823,904.25x = 2,161,795,310,648,123.75
  5. Step 5: Solve for x
    x = 2,161,795,310,648,123.75/69,823,904.25
  6. Step 6: Final answer
    x = 30,960,676.49

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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.