Home / 31,207,971.60-43,048,169.28-20,611,426.32

Finding the Fourth Proportional to 31,207,971.60, 43,048,169.28 and 20,611,426.32

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Solution

The fourth proportional to 31,207,971.60, 43,048,169.28 and 20,611,426.32 is: 28,431,330.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,207,971.60 : 43,048,169.28 = 20,611,426.32 : x
  2. Step 2: Convert to fraction form
    31,207,971.60/43,048,169.28 = 20,611,426.32/x
  3. Step 3: Cross multiply
    31,207,971.60x = 43,048,169.28 × 20,611,426.32
  4. Step 4: Simplify right side
    31,207,971.60x = 887,284,169,325,607.50
  5. Step 5: Solve for x
    x = 887,284,169,325,607.50/31,207,971.60
  6. Step 6: Final answer
    x = 28,431,330.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.