Home / 422,985,167.40-634,447,799.04-112,085,899.80

Finding the Fourth Proportional to 422,985,167.40, 634,447,799.04 and 112,085,899.80

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Solution

The fourth proportional to 422,985,167.40, 634,447,799.04 and 112,085,899.80 is: 168,120,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,985,167.40 : 634,447,799.04 = 112,085,899.80 : x
  2. Step 2: Convert to fraction form
    422,985,167.40/634,447,799.04 = 112,085,899.80/x
  3. Step 3: Cross multiply
    422,985,167.40x = 634,447,799.04 × 112,085,899.80
  4. Step 4: Simplify right side
    422,985,167.40x = 71,112,652,431,527,968
  5. Step 5: Solve for x
    x = 71,112,652,431,527,968/422,985,167.40
  6. Step 6: Final answer
    x = 168,120,912.77

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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.