Home / 209,765,881.36-289,385,083.14-200,040,511

Finding the Fourth Proportional to 209,765,881.36, 289,385,083.14 and 200,040,511

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Solution

The fourth proportional to 209,765,881.36, 289,385,083.14 and 200,040,511 is: 275,968,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,765,881.36 : 289,385,083.14 = 200,040,511 : x
  2. Step 2: Convert to fraction form
    209,765,881.36/289,385,083.14 = 200,040,511/x
  3. Step 3: Cross multiply
    209,765,881.36x = 289,385,083.14 × 200,040,511
  4. Step 4: Simplify right side
    209,765,881.36x = 57,888,739,907,103,080
  5. Step 5: Solve for x
    x = 57,888,739,907,103,080/209,765,881.36
  6. Step 6: Final answer
    x = 275,968,329.70

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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.