Home / 7,853,642.28-11,780,721-2,173,390.92

Finding the Fourth Proportional to 7,853,642.28, 11,780,721 and 2,173,390.92

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Solution

The fourth proportional to 7,853,642.28, 11,780,721 and 2,173,390.92 is: 3,260,157.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,853,642.28 : 11,780,721 = 2,173,390.92 : x
  2. Step 2: Convert to fraction form
    7,853,642.28/11,780,721 = 2,173,390.92/x
  3. Step 3: Cross multiply
    7,853,642.28x = 11,780,721 × 2,173,390.92
  4. Step 4: Simplify right side
    7,853,642.28x = 25,604,112,052,453.32
  5. Step 5: Solve for x
    x = 25,604,112,052,453.32/7,853,642.28
  6. Step 6: Final answer
    x = 3,260,157.66

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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.