Home / 262,104,643.20-393,156,964.80-257,002,809.60

Finding the Fourth Proportional to 262,104,643.20, 393,156,964.80 and 257,002,809.60

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Solution

The fourth proportional to 262,104,643.20, 393,156,964.80 and 257,002,809.60 is: 385,504,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,104,643.20 : 393,156,964.80 = 257,002,809.60 : x
  2. Step 2: Convert to fraction form
    262,104,643.20/393,156,964.80 = 257,002,809.60/x
  3. Step 3: Cross multiply
    262,104,643.20x = 393,156,964.80 × 257,002,809.60
  4. Step 4: Simplify right side
    262,104,643.20x = 101,042,444,567,408,304
  5. Step 5: Solve for x
    x = 101,042,444,567,408,304/262,104,643.20
  6. Step 6: Final answer
    x = 385,504,214.40

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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.