Home / 21,004,585,510.56-28,986,415,336.32-11,359,315,479.62

Finding the Fourth Proportional to 21,004,585,510.56, 28,986,415,336.32 and 11,359,315,479.62

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Solution

The fourth proportional to 21,004,585,510.56, 28,986,415,336.32 and 11,359,315,479.62 is: 15,675,902,591.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,585,510.56 : 28,986,415,336.32 = 11,359,315,479.62 : x
  2. Step 2: Convert to fraction form
    21,004,585,510.56/28,986,415,336.32 = 11,359,315,479.62/x
  3. Step 3: Cross multiply
    21,004,585,510.56x = 28,986,415,336.32 × 11,359,315,479.62
  4. Step 4: Simplify right side
    21,004,585,510.56x = 329,265,836,428,554,338,304
  5. Step 5: Solve for x
    x = 329,265,836,428,554,338,304/21,004,585,510.56
  6. Step 6: Final answer
    x = 15,675,902,591.03

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1.5x scale

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.