Home / 523,661,786.09-723,343,076.74-388,146,741.38

Finding the Fourth Proportional to 523,661,786.09, 723,343,076.74 and 388,146,741.38

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Solution

The fourth proportional to 523,661,786.09, 723,343,076.74 and 388,146,741.38 is: 536,153,803.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,661,786.09 : 723,343,076.74 = 388,146,741.38 : x
  2. Step 2: Convert to fraction form
    523,661,786.09/723,343,076.74 = 388,146,741.38/x
  3. Step 3: Cross multiply
    523,661,786.09x = 723,343,076.74 × 388,146,741.38
  4. Step 4: Simplify right side
    523,661,786.09x = 280,763,258,135,991,968
  5. Step 5: Solve for x
    x = 280,763,258,135,991,968/523,661,786.09
  6. Step 6: Final answer
    x = 536,153,803.07

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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.