Home / 199,709,132.78-275,598,976.64-111,603,130.56

Finding the Fourth Proportional to 199,709,132.78, 275,598,976.64 and 111,603,130.56

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Solution

The fourth proportional to 199,709,132.78, 275,598,976.64 and 111,603,130.56 is: 154,012,528.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,709,132.78 : 275,598,976.64 = 111,603,130.56 : x
  2. Step 2: Convert to fraction form
    199,709,132.78/275,598,976.64 = 111,603,130.56/x
  3. Step 3: Cross multiply
    199,709,132.78x = 275,598,976.64 × 111,603,130.56
  4. Step 4: Simplify right side
    199,709,132.78x = 30,757,708,571,598,296
  5. Step 5: Solve for x
    x = 30,757,708,571,598,296/199,709,132.78
  6. Step 6: Final answer
    x = 154,012,528.84

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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.