Home / 839,842,336.20-1,259,763,504.30-257,666,435.40

Finding the Fourth Proportional to 839,842,336.20, 1,259,763,504.30 and 257,666,435.40

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Solution

The fourth proportional to 839,842,336.20, 1,259,763,504.30 and 257,666,435.40 is: 386,499,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,842,336.20 : 1,259,763,504.30 = 257,666,435.40 : x
  2. Step 2: Convert to fraction form
    839,842,336.20/1,259,763,504.30 = 257,666,435.40/x
  3. Step 3: Cross multiply
    839,842,336.20x = 1,259,763,504.30 × 257,666,435.40
  4. Step 4: Simplify right side
    839,842,336.20x = 324,598,771,599,993,536
  5. Step 5: Solve for x
    x = 324,598,771,599,993,536/839,842,336.20
  6. Step 6: Final answer
    x = 386,499,653.10

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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.