Home / 12,945,322.40-19,430,425.20-6,562,781.60

Finding the Fourth Proportional to 12,945,322.40, 19,430,425.20 and 6,562,781.60

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Solution

The fourth proportional to 12,945,322.40, 19,430,425.20 and 6,562,781.60 is: 9,850,479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945,322.40 : 19,430,425.20 = 6,562,781.60 : x
  2. Step 2: Convert to fraction form
    12,945,322.40/19,430,425.20 = 6,562,781.60/x
  3. Step 3: Cross multiply
    12,945,322.40x = 19,430,425.20 × 6,562,781.60
  4. Step 4: Simplify right side
    12,945,322.40x = 127,517,636,982,736.31
  5. Step 5: Solve for x
    x = 127,517,636,982,736.31/12,945,322.40
  6. Step 6: Final answer
    x = 9,850,479.81

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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.