Home / 1,993,819,129.40-2,990,728,694.10-1,340,784,428.60

Finding the Fourth Proportional to 1,993,819,129.40, 2,990,728,694.10 and 1,340,784,428.60

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Solution

The fourth proportional to 1,993,819,129.40, 2,990,728,694.10 and 1,340,784,428.60 is: 2,011,176,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,819,129.40 : 2,990,728,694.10 = 1,340,784,428.60 : x
  2. Step 2: Convert to fraction form
    1,993,819,129.40/2,990,728,694.10 = 1,340,784,428.60/x
  3. Step 3: Cross multiply
    1,993,819,129.40x = 2,990,728,694.10 × 1,340,784,428.60
  4. Step 4: Simplify right side
    1,993,819,129.40x = 4,009,922,463,216,492,032
  5. Step 5: Solve for x
    x = 4,009,922,463,216,492,032/1,993,819,129.40
  6. Step 6: Final answer
    x = 2,011,176,642.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.