Home / 209,765,883.36-289,385,085.90-200,040,513

Finding the Fourth Proportional to 209,765,883.36, 289,385,085.90 and 200,040,513

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Solution

The fourth proportional to 209,765,883.36, 289,385,085.90 and 200,040,513 is: 275,968,332.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,765,883.36 : 289,385,085.90 = 200,040,513 : x
  2. Step 2: Convert to fraction form
    209,765,883.36/289,385,085.90 = 200,040,513/x
  3. Step 3: Cross multiply
    209,765,883.36x = 289,385,085.90 × 200,040,513
  4. Step 4: Simplify right side
    209,765,883.36x = 57,888,741,037,985,064
  5. Step 5: Solve for x
    x = 57,888,741,037,985,064/209,765,883.36
  6. Step 6: Final answer
    x = 275,968,332.46

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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.