Home / 21,004,585,526.57-28,986,415,358.40-11,359,315,495.62

Finding the Fourth Proportional to 21,004,585,526.57, 28,986,415,358.40 and 11,359,315,495.62

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Solution

The fourth proportional to 21,004,585,526.57, 28,986,415,358.40 and 11,359,315,495.62 is: 15,675,902,613.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,585,526.57 : 28,986,415,358.40 = 11,359,315,495.62 : x
  2. Step 2: Convert to fraction form
    21,004,585,526.57/28,986,415,358.40 = 11,359,315,495.62/x
  3. Step 3: Cross multiply
    21,004,585,526.57x = 28,986,415,358.40 × 11,359,315,495.62
  4. Step 4: Simplify right side
    21,004,585,526.57x = 329,265,837,143,150,690,304
  5. Step 5: Solve for x
    x = 329,265,837,143,150,690,304/21,004,585,526.57
  6. Step 6: Final answer
    x = 15,675,902,613.11

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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.