Home / 464,863,728.51-641,540,935.46-256,019,815.80

Finding the Fourth Proportional to 464,863,728.51, 641,540,935.46 and 256,019,815.80

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Solution

The fourth proportional to 464,863,728.51, 641,540,935.46 and 256,019,815.80 is: 353,323,311.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,863,728.51 : 641,540,935.46 = 256,019,815.80 : x
  2. Step 2: Convert to fraction form
    464,863,728.51/641,540,935.46 = 256,019,815.80/x
  3. Step 3: Cross multiply
    464,863,728.51x = 641,540,935.46 × 256,019,815.80
  4. Step 4: Simplify right side
    464,863,728.51x = 164,247,192,126,356,896
  5. Step 5: Solve for x
    x = 164,247,192,126,356,896/464,863,728.51
  6. Step 6: Final answer
    x = 353,323,311.87

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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.