Home / 358,734,190.80-538,101,286.20-272,003,019.60

Finding the Fourth Proportional to 358,734,190.80, 538,101,286.20 and 272,003,019.60

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Solution

The fourth proportional to 358,734,190.80, 538,101,286.20 and 272,003,019.60 is: 408,004,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,734,190.80 : 538,101,286.20 = 272,003,019.60 : x
  2. Step 2: Convert to fraction form
    358,734,190.80/538,101,286.20 = 272,003,019.60/x
  3. Step 3: Cross multiply
    358,734,190.80x = 538,101,286.20 × 272,003,019.60
  4. Step 4: Simplify right side
    358,734,190.80x = 146,365,174,697,043,840
  5. Step 5: Solve for x
    x = 146,365,174,697,043,840/358,734,190.80
  6. Step 6: Final answer
    x = 408,004,529.40

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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.