Home / 209,765,865.36-289,385,061.06-200,040,495

Finding the Fourth Proportional to 209,765,865.36, 289,385,061.06 and 200,040,495

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Solution

The fourth proportional to 209,765,865.36, 289,385,061.06 and 200,040,495 is: 275,968,307.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,765,865.36 : 289,385,061.06 = 200,040,495 : x
  2. Step 2: Convert to fraction form
    209,765,865.36/289,385,061.06 = 200,040,495/x
  3. Step 3: Cross multiply
    209,765,865.36x = 289,385,061.06 × 200,040,495
  4. Step 4: Simplify right side
    209,765,865.36x = 57,888,730,860,047,624
  5. Step 5: Solve for x
    x = 57,888,730,860,047,624/209,765,865.36
  6. Step 6: Final answer
    x = 275,968,307.62

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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.