Home / 210,503,627.62-315,731,321.55-55,072,440.78

Finding the Fourth Proportional to 210,503,627.62, 315,731,321.55 and 55,072,440.78

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Solution

The fourth proportional to 210,503,627.62, 315,731,321.55 and 55,072,440.78 is: 82,602,350.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,503,627.62 : 315,731,321.55 = 55,072,440.78 : x
  2. Step 2: Convert to fraction form
    210,503,627.62/315,731,321.55 = 55,072,440.78/x
  3. Step 3: Cross multiply
    210,503,627.62x = 315,731,321.55 × 55,072,440.78
  4. Step 4: Simplify right side
    210,503,627.62x = 17,388,094,507,268,890
  5. Step 5: Solve for x
    x = 17,388,094,507,268,890/210,503,627.62
  6. Step 6: Final answer
    x = 82,602,350.87

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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.