Home / 3,928,202,990.19-5,428,011,123.94-2,797,209,222.87

Finding the Fourth Proportional to 3,928,202,990.19, 5,428,011,123.94 and 2,797,209,222.87

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Solution

The fourth proportional to 3,928,202,990.19, 5,428,011,123.94 and 2,797,209,222.87 is: 3,865,198,111.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,202,990.19 : 5,428,011,123.94 = 2,797,209,222.87 : x
  2. Step 2: Convert to fraction form
    3,928,202,990.19/5,428,011,123.94 = 2,797,209,222.87/x
  3. Step 3: Cross multiply
    3,928,202,990.19x = 5,428,011,123.94 × 2,797,209,222.87
  4. Step 4: Simplify right side
    3,928,202,990.19x = 15,183,282,777,725,921,280
  5. Step 5: Solve for x
    x = 15,183,282,777,725,921,280/3,928,202,990.19
  6. Step 6: Final answer
    x = 3,865,198,111.11

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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.