Home / 383,621,505.85-529,358,145.71-283,203,351.94

Finding the Fourth Proportional to 383,621,505.85, 529,358,145.71 and 283,203,351.94

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Solution

The fourth proportional to 383,621,505.85, 529,358,145.71 and 283,203,351.94 is: 390,791,441.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,621,505.85 : 529,358,145.71 = 283,203,351.94 : x
  2. Step 2: Convert to fraction form
    383,621,505.85/529,358,145.71 = 283,203,351.94/x
  3. Step 3: Cross multiply
    383,621,505.85x = 529,358,145.71 × 283,203,351.94
  4. Step 4: Simplify right side
    383,621,505.85x = 149,916,001,243,574,912
  5. Step 5: Solve for x
    x = 149,916,001,243,574,912/383,621,505.85
  6. Step 6: Final answer
    x = 390,791,441.46

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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.