Home / 13,905,742.80-20,867,471.55-8,148,465.30

Finding the Fourth Proportional to 13,905,742.80, 20,867,471.55 and 8,148,465.30

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Solution

The fourth proportional to 13,905,742.80, 20,867,471.55 and 8,148,465.30 is: 12,227,888.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905,742.80 : 20,867,471.55 = 8,148,465.30 : x
  2. Step 2: Convert to fraction form
    13,905,742.80/20,867,471.55 = 8,148,465.30/x
  3. Step 3: Cross multiply
    13,905,742.80x = 20,867,471.55 × 8,148,465.30
  4. Step 4: Simplify right side
    13,905,742.80x = 170,037,867,823,912.22
  5. Step 5: Solve for x
    x = 170,037,867,823,912.22/13,905,742.80
  6. Step 6: Final answer
    x = 12,227,888.17

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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.