Home / 1,990,848,015.70-2,986,272,023.55-1,579,678,018.90

Finding the Fourth Proportional to 1,990,848,015.70, 2,986,272,023.55 and 1,579,678,018.90

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Solution

The fourth proportional to 1,990,848,015.70, 2,986,272,023.55 and 1,579,678,018.90 is: 2,369,517,028.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,848,015.70 : 2,986,272,023.55 = 1,579,678,018.90 : x
  2. Step 2: Convert to fraction form
    1,990,848,015.70/2,986,272,023.55 = 1,579,678,018.90/x
  3. Step 3: Cross multiply
    1,990,848,015.70x = 2,986,272,023.55 × 1,579,678,018.90
  4. Step 4: Simplify right side
    1,990,848,015.70x = 4,717,348,274,057,958,400
  5. Step 5: Solve for x
    x = 4,717,348,274,057,958,400/1,990,848,015.70
  6. Step 6: Final answer
    x = 2,369,517,028.35

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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.