Home / 19,211,245.21-28,817,287.44-7,702,132.42

Finding the Fourth Proportional to 19,211,245.21, 28,817,287.44 and 7,702,132.42

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Solution

The fourth proportional to 19,211,245.21, 28,817,287.44 and 7,702,132.42 is: 11,553,366.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211,245.21 : 28,817,287.44 = 7,702,132.42 : x
  2. Step 2: Convert to fraction form
    19,211,245.21/28,817,287.44 = 7,702,132.42/x
  3. Step 3: Cross multiply
    19,211,245.21x = 28,817,287.44 × 7,702,132.42
  4. Step 4: Simplify right side
    19,211,245.21x = 221,954,563,848,082.81
  5. Step 5: Solve for x
    x = 221,954,563,848,082.81/19,211,245.21
  6. Step 6: Final answer
    x = 11,553,366.87

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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.