Home / 3,899,495.85-5,381,203.58-2,157,119.84

Finding the Fourth Proportional to 3,899,495.85, 5,381,203.58 and 2,157,119.84

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Solution

The fourth proportional to 3,899,495.85, 5,381,203.58 and 2,157,119.84 is: 2,976,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,495.85 : 5,381,203.58 = 2,157,119.84 : x
  2. Step 2: Convert to fraction form
    3,899,495.85/5,381,203.58 = 2,157,119.84/x
  3. Step 3: Cross multiply
    3,899,495.85x = 5,381,203.58 × 2,157,119.84
  4. Step 4: Simplify right side
    3,899,495.85x = 11,607,900,967,805.41
  5. Step 5: Solve for x
    x = 11,607,900,967,805.41/3,899,495.85
  6. Step 6: Final answer
    x = 2,976,769.67

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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.