Home / 3,928,202,971.20-5,428,011,097.78-2,797,209,203.94

Finding the Fourth Proportional to 3,928,202,971.20, 5,428,011,097.78 and 2,797,209,203.94

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Solution

The fourth proportional to 3,928,202,971.20, 5,428,011,097.78 and 2,797,209,203.94 is: 3,865,198,085.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,202,971.20 : 5,428,011,097.78 = 2,797,209,203.94 : x
  2. Step 2: Convert to fraction form
    3,928,202,971.20/5,428,011,097.78 = 2,797,209,203.94/x
  3. Step 3: Cross multiply
    3,928,202,971.20x = 5,428,011,097.78 × 2,797,209,203.94
  4. Step 4: Simplify right side
    3,928,202,971.20x = 15,183,282,601,798,678,528
  5. Step 5: Solve for x
    x = 15,183,282,601,798,678,528/3,928,202,971.20
  6. Step 6: Final answer
    x = 3,865,198,085.01

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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.