Home / 31,207,972.60-43,048,170.66-20,611,427.32

Finding the Fourth Proportional to 31,207,972.60, 43,048,170.66 and 20,611,427.32

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Solution

The fourth proportional to 31,207,972.60, 43,048,170.66 and 20,611,427.32 is: 28,431,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,207,972.60 : 43,048,170.66 = 20,611,427.32 : x
  2. Step 2: Convert to fraction form
    31,207,972.60/43,048,170.66 = 20,611,427.32/x
  3. Step 3: Cross multiply
    31,207,972.60x = 43,048,170.66 × 20,611,427.32
  4. Step 4: Simplify right side
    31,207,972.60x = 887,284,240,817,546.38
  5. Step 5: Solve for x
    x = 887,284,240,817,546.38/31,207,972.60
  6. Step 6: Final answer
    x = 28,431,332.35

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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.