Home / 1,323,863,999.70-1,985,795,999.55-864,698,975.70

Finding the Fourth Proportional to 1,323,863,999.70, 1,985,795,999.55 and 864,698,975.70

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Solution

The fourth proportional to 1,323,863,999.70, 1,985,795,999.55 and 864,698,975.70 is: 1,297,048,463.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,863,999.70 : 1,985,795,999.55 = 864,698,975.70 : x
  2. Step 2: Convert to fraction form
    1,323,863,999.70/1,985,795,999.55 = 864,698,975.70/x
  3. Step 3: Cross multiply
    1,323,863,999.70x = 1,985,795,999.55 × 864,698,975.70
  4. Step 4: Simplify right side
    1,323,863,999.70x = 1,717,115,766,760,042,752
  5. Step 5: Solve for x
    x = 1,717,115,766,760,042,752/1,323,863,999.70
  6. Step 6: Final answer
    x = 1,297,048,463.55

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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.