Home / 12,509,779-17,263,378.38-7,077,271

Finding the Fourth Proportional to 12,509,779, 17,263,378.38 and 7,077,271

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Solution

The fourth proportional to 12,509,779, 17,263,378.38 and 7,077,271 is: 9,766,567.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509,779 : 17,263,378.38 = 7,077,271 : x
  2. Step 2: Convert to fraction form
    12,509,779/17,263,378.38 = 7,077,271/x
  3. Step 3: Cross multiply
    12,509,779x = 17,263,378.38 × 7,077,271
  4. Step 4: Simplify right side
    12,509,779x = 122,177,607,170,800.97
  5. Step 5: Solve for x
    x = 122,177,607,170,800.97/12,509,779
  6. Step 6: Final answer
    x = 9,766,567.99

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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.