Home / 30,439,142.40-41,983,761.60-19,433,458.56

Finding the Fourth Proportional to 30,439,142.40, 41,983,761.60 and 19,433,458.56

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Solution

The fourth proportional to 30,439,142.40, 41,983,761.60 and 19,433,458.56 is: 26,803,964.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,439,142.40 : 41,983,761.60 = 19,433,458.56 : x
  2. Step 2: Convert to fraction form
    30,439,142.40/41,983,761.60 = 19,433,458.56/x
  3. Step 3: Cross multiply
    30,439,142.40x = 41,983,761.60 × 19,433,458.56
  4. Step 4: Simplify right side
    30,439,142.40x = 815,889,691,246,519.25
  5. Step 5: Solve for x
    x = 815,889,691,246,519.25/30,439,142.40
  6. Step 6: Final answer
    x = 26,803,964.47

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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.