Home / 2,180,222.81-3,008,678.11-1,213,352.84

Finding the Fourth Proportional to 2,180,222.81, 3,008,678.11 and 1,213,352.84

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Solution

The fourth proportional to 2,180,222.81, 3,008,678.11 and 1,213,352.84 is: 1,674,410.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180,222.81 : 3,008,678.11 = 1,213,352.84 : x
  2. Step 2: Convert to fraction form
    2,180,222.81/3,008,678.11 = 1,213,352.84/x
  3. Step 3: Cross multiply
    2,180,222.81x = 3,008,678.11 × 1,213,352.84
  4. Step 4: Simplify right side
    2,180,222.81x = 3,650,588,133,902.65
  5. Step 5: Solve for x
    x = 3,650,588,133,902.65/2,180,222.81
  6. Step 6: Final answer
    x = 1,674,410.58

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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.