Home / 1,987,698,998.70-2,981,520,504.45-897,180,317.10

Finding the Fourth Proportional to 1,987,698,998.70, 2,981,520,504.45 and 897,180,317.10

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Solution

The fourth proportional to 1,987,698,998.70, 2,981,520,504.45 and 897,180,317.10 is: 1,345,757,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,698,998.70 : 2,981,520,504.45 = 897,180,317.10 : x
  2. Step 2: Convert to fraction form
    1,987,698,998.70/2,981,520,504.45 = 897,180,317.10/x
  3. Step 3: Cross multiply
    1,987,698,998.70x = 2,981,520,504.45 × 897,180,317.10
  4. Step 4: Simplify right side
    1,987,698,998.70x = 2,674,961,511,622,602,752
  5. Step 5: Solve for x
    x = 2,674,961,511,622,602,752/1,987,698,998.70
  6. Step 6: Final answer
    x = 1,345,757,840.28

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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.