Home / 3,919,124,406.47-5,879,537,862.57-1,431,981,338.40

Finding the Fourth Proportional to 3,919,124,406.47, 5,879,537,862.57 and 1,431,981,338.40

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Solution

The fourth proportional to 3,919,124,406.47, 5,879,537,862.57 and 1,431,981,338.40 is: 2,148,283,040.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919,124,406.47 : 5,879,537,862.57 = 1,431,981,338.40 : x
  2. Step 2: Convert to fraction form
    3,919,124,406.47/5,879,537,862.57 = 1,431,981,338.40/x
  3. Step 3: Cross multiply
    3,919,124,406.47x = 5,879,537,862.57 × 1,431,981,338.40
  4. Step 4: Simplify right side
    3,919,124,406.47x = 8,419,388,497,616,463,872
  5. Step 5: Solve for x
    x = 8,419,388,497,616,463,872/3,919,124,406.47
  6. Step 6: Final answer
    x = 2,148,283,040.91

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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.