Home / 12,843,605.45-19,262,460.05-7,657,682.39

Finding the Fourth Proportional to 12,843,605.45, 19,262,460.05 and 7,657,682.39

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Solution

The fourth proportional to 12,843,605.45, 19,262,460.05 and 7,657,682.39 is: 11,484,765.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843,605.45 : 19,262,460.05 = 7,657,682.39 : x
  2. Step 2: Convert to fraction form
    12,843,605.45/19,262,460.05 = 7,657,682.39/x
  3. Step 3: Cross multiply
    12,843,605.45x = 19,262,460.05 × 7,657,682.39
  4. Step 4: Simplify right side
    12,843,605.45x = 147,505,800,978,362.81
  5. Step 5: Solve for x
    x = 147,505,800,978,362.81/12,843,605.45
  6. Step 6: Final answer
    x = 11,484,765.83

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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.