Home / 210,503,575.46-315,731,243.32-55,072,388.54

Finding the Fourth Proportional to 210,503,575.46, 315,731,243.32 and 55,072,388.54

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Solution

The fourth proportional to 210,503,575.46, 315,731,243.32 and 55,072,388.54 is: 82,602,272.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,503,575.46 : 315,731,243.32 = 55,072,388.54 : x
  2. Step 2: Convert to fraction form
    210,503,575.46/315,731,243.32 = 55,072,388.54/x
  3. Step 3: Cross multiply
    210,503,575.46x = 315,731,243.32 × 55,072,388.54
  4. Step 4: Simplify right side
    210,503,575.46x = 17,388,073,706,336,318
  5. Step 5: Solve for x
    x = 17,388,073,706,336,318/210,503,575.46
  6. Step 6: Final answer
    x = 82,602,272.52

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Why These Related Problems?

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