Home / 3,986,139,076.80-5,979,177,122.40-1,038,412,996.80

Finding the Fourth Proportional to 3,986,139,076.80, 5,979,177,122.40 and 1,038,412,996.80

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Solution

The fourth proportional to 3,986,139,076.80, 5,979,177,122.40 and 1,038,412,996.80 is: 1,557,611,291.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,139,076.80 : 5,979,177,122.40 = 1,038,412,996.80 : x
  2. Step 2: Convert to fraction form
    3,986,139,076.80/5,979,177,122.40 = 1,038,412,996.80/x
  3. Step 3: Cross multiply
    3,986,139,076.80x = 5,979,177,122.40 × 1,038,412,996.80
  4. Step 4: Simplify right side
    3,986,139,076.80x = 6,208,855,234,069,384,192
  5. Step 5: Solve for x
    x = 6,208,855,234,069,384,192/3,986,139,076.80
  6. Step 6: Final answer
    x = 1,557,611,291.14

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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.