Home / 21,200,104.32-31,800,679.20-7,736,928

Finding the Fourth Proportional to 21,200,104.32, 31,800,679.20 and 7,736,928

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Solution

The fourth proportional to 21,200,104.32, 31,800,679.20 and 7,736,928 is: 11,605,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200,104.32 : 31,800,679.20 = 7,736,928 : x
  2. Step 2: Convert to fraction form
    21,200,104.32/31,800,679.20 = 7,736,928/x
  3. Step 3: Cross multiply
    21,200,104.32x = 31,800,679.20 × 7,736,928
  4. Step 4: Simplify right side
    21,200,104.32x = 246,039,565,321,497.59
  5. Step 5: Solve for x
    x = 246,039,565,321,497.59/21,200,104.32
  6. Step 6: Final answer
    x = 11,605,582.77

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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.