Home / 253,626,528.35-380,449,852.86-120,647,450.54

Finding the Fourth Proportional to 253,626,528.35, 380,449,852.86 and 120,647,450.54

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Solution

The fourth proportional to 253,626,528.35, 380,449,852.86 and 120,647,450.54 is: 180,975,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,626,528.35 : 380,449,852.86 = 120,647,450.54 : x
  2. Step 2: Convert to fraction form
    253,626,528.35/380,449,852.86 = 120,647,450.54/x
  3. Step 3: Cross multiply
    253,626,528.35x = 380,449,852.86 × 120,647,450.54
  4. Step 4: Simplify right side
    253,626,528.35x = 45,900,304,805,877,128
  5. Step 5: Solve for x
    x = 45,900,304,805,877,128/253,626,528.35
  6. Step 6: Final answer
    x = 180,975,961.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.