Home / 381,603,015.43-526,674,636.29-317,922,368.67

Finding the Fourth Proportional to 381,603,015.43, 526,674,636.29 and 317,922,368.67

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Solution

The fourth proportional to 381,603,015.43, 526,674,636.29 and 317,922,368.67 is: 438,784,918.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,603,015.43 : 526,674,636.29 = 317,922,368.67 : x
  2. Step 2: Convert to fraction form
    381,603,015.43/526,674,636.29 = 317,922,368.67/x
  3. Step 3: Cross multiply
    381,603,015.43x = 526,674,636.29 × 317,922,368.67
  4. Step 4: Simplify right side
    381,603,015.43x = 167,441,647,888,522,368
  5. Step 5: Solve for x
    x = 167,441,647,888,522,368/381,603,015.43
  6. Step 6: Final answer
    x = 438,784,918.15

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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.