Home / 547,141,375.86-820,762,515.42-178,678,258.47

Finding the Fourth Proportional to 547,141,375.86, 820,762,515.42 and 178,678,258.47

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Solution

The fourth proportional to 547,141,375.86, 820,762,515.42 and 178,678,258.47 is: 268,033,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,141,375.86 : 820,762,515.42 = 178,678,258.47 : x
  2. Step 2: Convert to fraction form
    547,141,375.86/820,762,515.42 = 178,678,258.47/x
  3. Step 3: Cross multiply
    547,141,375.86x = 820,762,515.42 × 178,678,258.47
  4. Step 4: Simplify right side
    547,141,375.86x = 146,652,416,872,702,112
  5. Step 5: Solve for x
    x = 146,652,416,872,702,112/547,141,375.86
  6. Step 6: Final answer
    x = 268,033,863.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.