Home / 20,620,322.10-28,456,335.94-11,328,750.94

Finding the Fourth Proportional to 20,620,322.10, 28,456,335.94 and 11,328,750.94

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Solution

The fourth proportional to 20,620,322.10, 28,456,335.94 and 11,328,750.94 is: 15,633,836.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620,322.10 : 28,456,335.94 = 11,328,750.94 : x
  2. Step 2: Convert to fraction form
    20,620,322.10/28,456,335.94 = 11,328,750.94/x
  3. Step 3: Cross multiply
    20,620,322.10x = 28,456,335.94 × 11,328,750.94
  4. Step 4: Simplify right side
    20,620,322.10x = 322,374,742,529,230.81
  5. Step 5: Solve for x
    x = 322,374,742,529,230.81/20,620,322.10
  6. Step 6: Final answer
    x = 15,633,836.41

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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.