Home / 21,004,585,526.43-28,986,415,358.25-11,359,315,495.49

Finding the Fourth Proportional to 21,004,585,526.43, 28,986,415,358.25 and 11,359,315,495.49

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Solution

The fourth proportional to 21,004,585,526.43, 28,986,415,358.25 and 11,359,315,495.49 is: 15,675,902,612.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,585,526.43 : 28,986,415,358.25 = 11,359,315,495.49 : x
  2. Step 2: Convert to fraction form
    21,004,585,526.43/28,986,415,358.25 = 11,359,315,495.49/x
  3. Step 3: Cross multiply
    21,004,585,526.43x = 28,986,415,358.25 × 11,359,315,495.49
  4. Step 4: Simplify right side
    21,004,585,526.43x = 329,265,837,137,678,565,376
  5. Step 5: Solve for x
    x = 329,265,837,137,678,565,376/21,004,585,526.43
  6. Step 6: Final answer
    x = 15,675,902,612.95

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Double scale
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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.