Home / 438,719,453.88-605,079,826.29-385,682,761.23

Finding the Fourth Proportional to 438,719,453.88, 605,079,826.29 and 385,682,761.23

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Solution

The fourth proportional to 438,719,453.88, 605,079,826.29 and 385,682,761.23 is: 531,931,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,719,453.88 : 605,079,826.29 = 385,682,761.23 : x
  2. Step 2: Convert to fraction form
    438,719,453.88/605,079,826.29 = 385,682,761.23/x
  3. Step 3: Cross multiply
    438,719,453.88x = 605,079,826.29 × 385,682,761.23
  4. Step 4: Simplify right side
    438,719,453.88x = 233,368,858,168,095,936
  5. Step 5: Solve for x
    x = 233,368,858,168,095,936/438,719,453.88
  6. Step 6: Final answer
    x = 531,931,866.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.