Home / 20,510,738.56-28,301,677.05-11,807,229.67

Finding the Fourth Proportional to 20,510,738.56, 28,301,677.05 and 11,807,229.67

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Solution

The fourth proportional to 20,510,738.56, 28,301,677.05 and 11,807,229.67 is: 16,292,168.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510,738.56 : 28,301,677.05 = 11,807,229.67 : x
  2. Step 2: Convert to fraction form
    20,510,738.56/28,301,677.05 = 11,807,229.67/x
  3. Step 3: Cross multiply
    20,510,738.56x = 28,301,677.05 × 11,807,229.67
  4. Step 4: Simplify right side
    20,510,738.56x = 334,164,400,949,041
  5. Step 5: Solve for x
    x = 334,164,400,949,041/20,510,738.56
  6. Step 6: Final answer
    x = 16,292,168.12

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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.