Home / 209,765,871.36-289,385,069.34-200,040,501

Finding the Fourth Proportional to 209,765,871.36, 289,385,069.34 and 200,040,501

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Solution

The fourth proportional to 209,765,871.36, 289,385,069.34 and 200,040,501 is: 275,968,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,765,871.36 : 289,385,069.34 = 200,040,501 : x
  2. Step 2: Convert to fraction form
    209,765,871.36/289,385,069.34 = 200,040,501/x
  3. Step 3: Cross multiply
    209,765,871.36x = 289,385,069.34 × 200,040,501
  4. Step 4: Simplify right side
    209,765,871.36x = 57,888,734,252,693,336
  5. Step 5: Solve for x
    x = 57,888,734,252,693,336/209,765,871.36
  6. Step 6: Final answer
    x = 275,968,315.90

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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.