Home / 393,669,606.20-590,504,409.30-212,271,078.20

Finding the Fourth Proportional to 393,669,606.20, 590,504,409.30 and 212,271,078.20

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Solution

The fourth proportional to 393,669,606.20, 590,504,409.30 and 212,271,078.20 is: 318,406,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,669,606.20 : 590,504,409.30 = 212,271,078.20 : x
  2. Step 2: Convert to fraction form
    393,669,606.20/590,504,409.30 = 212,271,078.20/x
  3. Step 3: Cross multiply
    393,669,606.20x = 590,504,409.30 × 212,271,078.20
  4. Step 4: Simplify right side
    393,669,606.20x = 125,347,007,643,965,088
  5. Step 5: Solve for x
    x = 125,347,007,643,965,088/393,669,606.20
  6. Step 6: Final answer
    x = 318,406,617.30

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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.