Home / 1,248,834,369.89-1,873,367,143.26-408,481,884.79

Finding the Fourth Proportional to 1,248,834,369.89, 1,873,367,143.26 and 408,481,884.79

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Solution

The fourth proportional to 1,248,834,369.89, 1,873,367,143.26 and 408,481,884.79 is: 612,760,635.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,834,369.89 : 1,873,367,143.26 = 408,481,884.79 : x
  2. Step 2: Convert to fraction form
    1,248,834,369.89/1,873,367,143.26 = 408,481,884.79/x
  3. Step 3: Cross multiply
    1,248,834,369.89x = 1,873,367,143.26 × 408,481,884.79
  4. Step 4: Simplify right side
    1,248,834,369.89x = 765,236,541,576,267,136
  5. Step 5: Solve for x
    x = 765,236,541,576,267,136/1,248,834,369.89
  6. Step 6: Final answer
    x = 612,760,635.06

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1.5x scale

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.