Home / 12,572,236.64-18,867,742.32-8,519,111.84

Finding the Fourth Proportional to 12,572,236.64, 18,867,742.32 and 8,519,111.84

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Solution

The fourth proportional to 12,572,236.64, 18,867,742.32 and 8,519,111.84 is: 12,785,028.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572,236.64 : 18,867,742.32 = 8,519,111.84 : x
  2. Step 2: Convert to fraction form
    12,572,236.64/18,867,742.32 = 8,519,111.84/x
  3. Step 3: Cross multiply
    12,572,236.64x = 18,867,742.32 × 8,519,111.84
  4. Step 4: Simplify right side
    12,572,236.64x = 160,736,406,992,381.06
  5. Step 5: Solve for x
    x = 160,736,406,992,381.06/12,572,236.64
  6. Step 6: Final answer
    x = 12,785,028.76

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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.