Home / 28,471,620.81-42,775,563.41-18,256,494.34

Finding the Fourth Proportional to 28,471,620.81, 42,775,563.41 and 18,256,494.34

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Solution

The fourth proportional to 28,471,620.81, 42,775,563.41 and 18,256,494.34 is: 27,428,429.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,620.81 : 42,775,563.41 = 18,256,494.34 : x
  2. Step 2: Convert to fraction form
    28,471,620.81/42,775,563.41 = 18,256,494.34/x
  3. Step 3: Cross multiply
    28,471,620.81x = 42,775,563.41 × 18,256,494.34
  4. Step 4: Simplify right side
    28,471,620.81x = 780,931,831,315,624.88
  5. Step 5: Solve for x
    x = 780,931,831,315,624.88/28,471,620.81
  6. Step 6: Final answer
    x = 27,428,429.05

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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.