Home / 28,324,518.82-42,325,534.37-21,267,629.56

Finding the Fourth Proportional to 28,324,518.82, 42,325,534.37 and 21,267,629.56

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Solution

The fourth proportional to 28,324,518.82, 42,325,534.37 and 21,267,629.56 is: 31,780,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324,518.82 : 42,325,534.37 = 21,267,629.56 : x
  2. Step 2: Convert to fraction form
    28,324,518.82/42,325,534.37 = 21,267,629.56/x
  3. Step 3: Cross multiply
    28,324,518.82x = 42,325,534.37 × 21,267,629.56
  4. Step 4: Simplify right side
    28,324,518.82x = 900,163,785,910,207.88
  5. Step 5: Solve for x
    x = 900,163,785,910,207.88/28,324,518.82
  6. Step 6: Final answer
    x = 31,780,373.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.