Home / 21,004,585,522.08-28,986,415,352.19-11,359,315,491.12

Finding the Fourth Proportional to 21,004,585,522.08, 28,986,415,352.19 and 11,359,315,491.12

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Solution

The fourth proportional to 21,004,585,522.08, 28,986,415,352.19 and 11,359,315,491.12 is: 15,675,902,606.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,585,522.08 : 28,986,415,352.19 = 11,359,315,491.12 : x
  2. Step 2: Convert to fraction form
    21,004,585,522.08/28,986,415,352.19 = 11,359,315,491.12/x
  3. Step 3: Cross multiply
    21,004,585,522.08x = 28,986,415,352.19 × 11,359,315,491.12
  4. Step 4: Simplify right side
    21,004,585,522.08x = 329,265,836,942,170,456,064
  5. Step 5: Solve for x
    x = 329,265,836,942,170,456,064/21,004,585,522.08
  6. Step 6: Final answer
    x = 15,675,902,606.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.