Home / 380,057,825.80-570,086,738.70-325,638,267.40

Finding the Fourth Proportional to 380,057,825.80, 570,086,738.70 and 325,638,267.40

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Solution

The fourth proportional to 380,057,825.80, 570,086,738.70 and 325,638,267.40 is: 488,457,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,057,825.80 : 570,086,738.70 = 325,638,267.40 : x
  2. Step 2: Convert to fraction form
    380,057,825.80/570,086,738.70 = 325,638,267.40/x
  3. Step 3: Cross multiply
    380,057,825.80x = 570,086,738.70 × 325,638,267.40
  4. Step 4: Simplify right side
    380,057,825.80x = 185,642,057,857,984,544
  5. Step 5: Solve for x
    x = 185,642,057,857,984,544/380,057,825.80
  6. Step 6: Final answer
    x = 488,457,401.10

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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.