Home / 1,388,945,105.33-1,916,746,345.17-753,865,825.19

Finding the Fourth Proportional to 1,388,945,105.33, 1,916,746,345.17 and 753,865,825.19

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Solution

The fourth proportional to 1,388,945,105.33, 1,916,746,345.17 and 753,865,825.19 is: 1,040,335,978.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,945,105.33 : 1,916,746,345.17 = 753,865,825.19 : x
  2. Step 2: Convert to fraction form
    1,388,945,105.33/1,916,746,345.17 = 753,865,825.19/x
  3. Step 3: Cross multiply
    1,388,945,105.33x = 1,916,746,345.17 × 753,865,825.19
  4. Step 4: Simplify right side
    1,388,945,105.33x = 1,444,969,565,171,914,752
  5. Step 5: Solve for x
    x = 1,444,969,565,171,914,752/1,388,945,105.33
  6. Step 6: Final answer
    x = 1,040,335,978.46

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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.