Home / 422,923,971.63-634,515,856.04-201,877,377.81

Finding the Fourth Proportional to 422,923,971.63, 634,515,856.04 and 201,877,377.81

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Solution

The fourth proportional to 422,923,971.63, 634,515,856.04 and 201,877,377.81 is: 302,878,072.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,923,971.63 : 634,515,856.04 = 201,877,377.81 : x
  2. Step 2: Convert to fraction form
    422,923,971.63/634,515,856.04 = 201,877,377.81/x
  3. Step 3: Cross multiply
    422,923,971.63x = 634,515,856.04 × 201,877,377.81
  4. Step 4: Simplify right side
    422,923,971.63x = 128,094,397,196,222,640
  5. Step 5: Solve for x
    x = 128,094,397,196,222,640/422,923,971.63
  6. Step 6: Final answer
    x = 302,878,072.16

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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.