Home / 872,448,014.40-1,308,672,021.60-259,126,900.80

Finding the Fourth Proportional to 872,448,014.40, 1,308,672,021.60 and 259,126,900.80

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Solution

The fourth proportional to 872,448,014.40, 1,308,672,021.60 and 259,126,900.80 is: 388,690,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,448,014.40 : 1,308,672,021.60 = 259,126,900.80 : x
  2. Step 2: Convert to fraction form
    872,448,014.40/1,308,672,021.60 = 259,126,900.80/x
  3. Step 3: Cross multiply
    872,448,014.40x = 1,308,672,021.60 × 259,126,900.80
  4. Step 4: Simplify right side
    872,448,014.40x = 339,112,125,120,878,656
  5. Step 5: Solve for x
    x = 339,112,125,120,878,656/872,448,014.40
  6. Step 6: Final answer
    x = 388,690,351.20

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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.