Home / 5,105,126.88-7,660,667.04-1,912,495.68

Finding the Fourth Proportional to 5,105,126.88, 7,660,667.04 and 1,912,495.68

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Solution

The fourth proportional to 5,105,126.88, 7,660,667.04 and 1,912,495.68 is: 2,869,858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105,126.88 : 7,660,667.04 = 1,912,495.68 : x
  2. Step 2: Convert to fraction form
    5,105,126.88/7,660,667.04 = 1,912,495.68/x
  3. Step 3: Cross multiply
    5,105,126.88x = 7,660,667.04 × 1,912,495.68
  4. Step 4: Simplify right side
    5,105,126.88x = 14,650,992,619,918.39
  5. Step 5: Solve for x
    x = 14,650,992,619,918.39/5,105,126.88
  6. Step 6: Final answer
    x = 2,869,858.67

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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.