Home / 383,309,640.87-528,966,258.85-213,764,062.74

Finding the Fourth Proportional to 383,309,640.87, 528,966,258.85 and 213,764,062.74

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Solution

The fourth proportional to 383,309,640.87, 528,966,258.85 and 213,764,062.74 is: 294,993,823.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,309,640.87 : 528,966,258.85 = 213,764,062.74 : x
  2. Step 2: Convert to fraction form
    383,309,640.87/528,966,258.85 = 213,764,062.74/x
  3. Step 3: Cross multiply
    383,309,640.87x = 528,966,258.85 × 213,764,062.74
  4. Step 4: Simplify right side
    383,309,640.87x = 113,073,976,544,154,496
  5. Step 5: Solve for x
    x = 113,073,976,544,154,496/383,309,640.87
  6. Step 6: Final answer
    x = 294,993,823.50

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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.