Home / 2,639,239,809.80-3,957,851,945.10-798,380,673.80

Finding the Fourth Proportional to 2,639,239,809.80, 3,957,851,945.10 and 798,380,673.80

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Solution

The fourth proportional to 2,639,239,809.80, 3,957,851,945.10 and 798,380,673.80 is: 1,197,266,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639,239,809.80 : 3,957,851,945.10 = 798,380,673.80 : x
  2. Step 2: Convert to fraction form
    2,639,239,809.80/3,957,851,945.10 = 798,380,673.80/x
  3. Step 3: Cross multiply
    2,639,239,809.80x = 3,957,851,945.10 × 798,380,673.80
  4. Step 4: Simplify right side
    2,639,239,809.80x = 3,159,872,502,729,578,496
  5. Step 5: Solve for x
    x = 3,159,872,502,729,578,496/2,639,239,809.80
  6. Step 6: Final answer
    x = 1,197,266,156.34

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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.