Home / 2,585,388,420.36-3,878,627,358.78-838,454,943.60

Finding the Fourth Proportional to 2,585,388,420.36, 3,878,627,358.78 and 838,454,943.60

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Solution

The fourth proportional to 2,585,388,420.36, 3,878,627,358.78 and 838,454,943.60 is: 1,257,859,073.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585,388,420.36 : 3,878,627,358.78 = 838,454,943.60 : x
  2. Step 2: Convert to fraction form
    2,585,388,420.36/3,878,627,358.78 = 838,454,943.60/x
  3. Step 3: Cross multiply
    2,585,388,420.36x = 3,878,627,358.78 × 838,454,943.60
  4. Step 4: Simplify right side
    2,585,388,420.36x = 3,252,054,283,351,302,144
  5. Step 5: Solve for x
    x = 3,252,054,283,351,302,144/2,585,388,420.36
  6. Step 6: Final answer
    x = 1,257,859,073.61

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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.