Home / 857,395,399.68-1,284,901,621.92-447,634,180.80

Finding the Fourth Proportional to 857,395,399.68, 1,284,901,621.92 and 447,634,180.80

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Solution

The fourth proportional to 857,395,399.68, 1,284,901,621.92 and 447,634,180.80 is: 670,829,217.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,395,399.68 : 1,284,901,621.92 = 447,634,180.80 : x
  2. Step 2: Convert to fraction form
    857,395,399.68/1,284,901,621.92 = 447,634,180.80/x
  3. Step 3: Cross multiply
    857,395,399.68x = 1,284,901,621.92 × 447,634,180.80
  4. Step 4: Simplify right side
    857,395,399.68x = 575,165,884,936,750,592
  5. Step 5: Solve for x
    x = 575,165,884,936,750,592/857,395,399.68
  6. Step 6: Final answer
    x = 670,829,217.36

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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.