Home / 414,781,969.21-621,738,354.53-193,270,684.59

Finding the Fourth Proportional to 414,781,969.21, 621,738,354.53 and 193,270,684.59

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Solution

The fourth proportional to 414,781,969.21, 621,738,354.53 and 193,270,684.59 is: 289,703,522.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,781,969.21 : 621,738,354.53 = 193,270,684.59 : x
  2. Step 2: Convert to fraction form
    414,781,969.21/621,738,354.53 = 193,270,684.59/x
  3. Step 3: Cross multiply
    414,781,969.21x = 621,738,354.53 × 193,270,684.59
  4. Step 4: Simplify right side
    414,781,969.21x = 120,163,797,416,356,416
  5. Step 5: Solve for x
    x = 120,163,797,416,356,416/414,781,969.21
  6. Step 6: Final answer
    x = 289,703,522.18

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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.