Home / 12,509,780-17,263,379.76-7,077,272

Finding the Fourth Proportional to 12,509,780, 17,263,379.76 and 7,077,272

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Solution

The fourth proportional to 12,509,780, 17,263,379.76 and 7,077,272 is: 9,766,569.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509,780 : 17,263,379.76 = 7,077,272 : x
  2. Step 2: Convert to fraction form
    12,509,780/17,263,379.76 = 7,077,272/x
  3. Step 3: Cross multiply
    12,509,780x = 17,263,379.76 × 7,077,272
  4. Step 4: Simplify right side
    12,509,780x = 122,177,634,200,814.73
  5. Step 5: Solve for x
    x = 122,177,634,200,814.73/12,509,780
  6. Step 6: Final answer
    x = 9,766,569.37

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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.