Home / 526,466,375.21-727,280,358.91-420,480,639.85

Finding the Fourth Proportional to 526,466,375.21, 727,280,358.91 and 420,480,639.85

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Solution

The fourth proportional to 526,466,375.21, 727,280,358.91 and 420,480,639.85 is: 580,867,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,466,375.21 : 727,280,358.91 = 420,480,639.85 : x
  2. Step 2: Convert to fraction form
    526,466,375.21/727,280,358.91 = 420,480,639.85/x
  3. Step 3: Cross multiply
    526,466,375.21x = 727,280,358.91 × 420,480,639.85
  4. Step 4: Simplify right side
    526,466,375.21x = 305,807,310,661,945,088
  5. Step 5: Solve for x
    x = 305,807,310,661,945,088/526,466,375.21
  6. Step 6: Final answer
    x = 580,867,696.51

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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.