Home / 69,483,107.71-104,225,409.96-20,961,381.88

Finding the Fourth Proportional to 69,483,107.71, 104,225,409.96 and 20,961,381.88

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Solution

The fourth proportional to 69,483,107.71, 104,225,409.96 and 20,961,381.88 is: 31,442,298.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,483,107.71 : 104,225,409.96 = 20,961,381.88 : x
  2. Step 2: Convert to fraction form
    69,483,107.71/104,225,409.96 = 20,961,381.88/x
  3. Step 3: Cross multiply
    69,483,107.71x = 104,225,409.96 × 20,961,381.88
  4. Step 4: Simplify right side
    69,483,107.71x = 2,184,708,619,771,115.25
  5. Step 5: Solve for x
    x = 2,184,708,619,771,115.25/69,483,107.71
  6. Step 6: Final answer
    x = 31,442,298.59

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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.