Home / 30,199,344.09-41,661,838.13-20,406,220.53

Finding the Fourth Proportional to 30,199,344.09, 41,661,838.13 and 20,406,220.53

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Solution

The fourth proportional to 30,199,344.09, 41,661,838.13 and 20,406,220.53 is: 28,151,626.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,199,344.09 : 41,661,838.13 = 20,406,220.53 : x
  2. Step 2: Convert to fraction form
    30,199,344.09/41,661,838.13 = 20,406,220.53/x
  3. Step 3: Cross multiply
    30,199,344.09x = 41,661,838.13 × 20,406,220.53
  4. Step 4: Simplify right side
    30,199,344.09x = 850,160,656,463,911.75
  5. Step 5: Solve for x
    x = 850,160,656,463,911.75/30,199,344.09
  6. Step 6: Final answer
    x = 28,151,626.54

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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.