Home / 780,325,395.09-1,170,429,230.43-248,515,326.69

Finding the Fourth Proportional to 780,325,395.09, 1,170,429,230.43 and 248,515,326.69

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Solution

The fourth proportional to 780,325,395.09, 1,170,429,230.43 and 248,515,326.69 is: 372,754,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,325,395.09 : 1,170,429,230.43 = 248,515,326.69 : x
  2. Step 2: Convert to fraction form
    780,325,395.09/1,170,429,230.43 = 248,515,326.69/x
  3. Step 3: Cross multiply
    780,325,395.09x = 1,170,429,230.43 × 248,515,326.69
  4. Step 4: Simplify right side
    780,325,395.09x = 290,869,602,567,836,736
  5. Step 5: Solve for x
    x = 290,869,602,567,836,736/780,325,395.09
  6. Step 6: Final answer
    x = 372,754,243.80

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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.