Home / 1,431,833,738.15-1,974,811,168.33-930,204,145.90

Finding the Fourth Proportional to 1,431,833,738.15, 1,974,811,168.33 and 930,204,145.90

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Solution

The fourth proportional to 1,431,833,738.15, 1,974,811,168.33 and 930,204,145.90 is: 1,282,954,498.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,833,738.15 : 1,974,811,168.33 = 930,204,145.90 : x
  2. Step 2: Convert to fraction form
    1,431,833,738.15/1,974,811,168.33 = 930,204,145.90/x
  3. Step 3: Cross multiply
    1,431,833,738.15x = 1,974,811,168.33 × 930,204,145.90
  4. Step 4: Simplify right side
    1,431,833,738.15x = 1,836,977,536,150,188,544
  5. Step 5: Solve for x
    x = 1,836,977,536,150,188,544/1,431,833,738.15
  6. Step 6: Final answer
    x = 1,282,954,498.98

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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.