Home / 12,278,754.88-18,430,907.14-9,043,945.13

Finding the Fourth Proportional to 12,278,754.88, 18,430,907.14 and 9,043,945.13

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Solution

The fourth proportional to 12,278,754.88, 18,430,907.14 and 9,043,945.13 is: 13,575,327.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278,754.88 : 18,430,907.14 = 9,043,945.13 : x
  2. Step 2: Convert to fraction form
    12,278,754.88/18,430,907.14 = 9,043,945.13/x
  3. Step 3: Cross multiply
    12,278,754.88x = 18,430,907.14 × 9,043,945.13
  4. Step 4: Simplify right side
    12,278,754.88x = 166,688,112,816,357.09
  5. Step 5: Solve for x
    x = 166,688,112,816,357.09/12,278,754.88
  6. Step 6: Final answer
    x = 13,575,327.02

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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.