Home / 19,787,981,015.20-29,681,971,522.80-17,828,876,912.80

Finding the Fourth Proportional to 19,787,981,015.20, 29,681,971,522.80 and 17,828,876,912.80

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Solution

The fourth proportional to 19,787,981,015.20, 29,681,971,522.80 and 17,828,876,912.80 is: 26,743,315,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787,981,015.20 : 29,681,971,522.80 = 17,828,876,912.80 : x
  2. Step 2: Convert to fraction form
    19,787,981,015.20/29,681,971,522.80 = 17,828,876,912.80/x
  3. Step 3: Cross multiply
    19,787,981,015.20x = 29,681,971,522.80 × 17,828,876,912.80
  4. Step 4: Simplify right side
    19,787,981,015.20x = 529,196,216,809,235,939,328
  5. Step 5: Solve for x
    x = 529,196,216,809,235,939,328/19,787,981,015.20
  6. Step 6: Final answer
    x = 26,743,315,369.20

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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.