Home / 38,922,271-53,713,855.14-21,519,739.60

Finding the Fourth Proportional to 38,922,271, 53,713,855.14 and 21,519,739.60

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Solution

The fourth proportional to 38,922,271, 53,713,855.14 and 21,519,739.60 is: 29,697,860.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,922,271 : 53,713,855.14 = 21,519,739.60 : x
  2. Step 2: Convert to fraction form
    38,922,271/53,713,855.14 = 21,519,739.60/x
  3. Step 3: Cross multiply
    38,922,271x = 53,713,855.14 × 21,519,739.60
  4. Step 4: Simplify right side
    38,922,271x = 1,155,908,175,524,921.75
  5. Step 5: Solve for x
    x = 1,155,908,175,524,921.75/38,922,271
  6. Step 6: Final answer
    x = 29,697,860.53

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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.