Home / 209,765,881.86-289,385,083.83-200,040,511.50

Finding the Fourth Proportional to 209,765,881.86, 289,385,083.83 and 200,040,511.50

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Solution

The fourth proportional to 209,765,881.86, 289,385,083.83 and 200,040,511.50 is: 275,968,330.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,765,881.86 : 289,385,083.83 = 200,040,511.50 : x
  2. Step 2: Convert to fraction form
    209,765,881.86/289,385,083.83 = 200,040,511.50/x
  3. Step 3: Cross multiply
    209,765,881.86x = 289,385,083.83 × 200,040,511.50
  4. Step 4: Simplify right side
    209,765,881.86x = 57,888,740,189,823,576
  5. Step 5: Solve for x
    x = 57,888,740,189,823,576/209,765,881.86
  6. Step 6: Final answer
    x = 275,968,330.39

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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.