Home / 21,100,093,693.80-29,118,186,593.28-11,585,261,730.12

Finding the Fourth Proportional to 21,100,093,693.80, 29,118,186,593.28 and 11,585,261,730.12

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Solution

The fourth proportional to 21,100,093,693.80, 29,118,186,593.28 and 11,585,261,730.12 is: 15,987,692,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,100,093,693.80 : 29,118,186,593.28 = 11,585,261,730.12 : x
  2. Step 2: Convert to fraction form
    21,100,093,693.80/29,118,186,593.28 = 11,585,261,730.12/x
  3. Step 3: Cross multiply
    21,100,093,693.80x = 29,118,186,593.28 × 11,585,261,730.12
  4. Step 4: Simplify right side
    21,100,093,693.80x = 337,341,812,789,620,047,872
  5. Step 5: Solve for x
    x = 337,341,812,789,620,047,872/21,100,093,693.80
  6. Step 6: Final answer
    x = 15,987,692,646.54

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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.