Home / 19,787,981,019.20-29,681,971,528.80-17,828,876,916.80

Finding the Fourth Proportional to 19,787,981,019.20, 29,681,971,528.80 and 17,828,876,916.80

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Solution

The fourth proportional to 19,787,981,019.20, 29,681,971,528.80 and 17,828,876,916.80 is: 26,743,315,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787,981,019.20 : 29,681,971,528.80 = 17,828,876,916.80 : x
  2. Step 2: Convert to fraction form
    19,787,981,019.20/29,681,971,528.80 = 17,828,876,916.80/x
  3. Step 3: Cross multiply
    19,787,981,019.20x = 29,681,971,528.80 × 17,828,876,916.80
  4. Step 4: Simplify right side
    19,787,981,019.20x = 529,196,217,034,937,073,664
  5. Step 5: Solve for x
    x = 529,196,217,034,937,073,664/19,787,981,019.20
  6. Step 6: Final answer
    x = 26,743,315,375.20

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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.