Home / 12,919,440.26-19,360,879.47-7,164,704.95

Finding the Fourth Proportional to 12,919,440.26, 19,360,879.47 and 7,164,704.95

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Solution

The fourth proportional to 12,919,440.26, 19,360,879.47 and 7,164,704.95 is: 10,736,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,440.26 : 19,360,879.47 = 7,164,704.95 : x
  2. Step 2: Convert to fraction form
    12,919,440.26/19,360,879.47 = 7,164,704.95/x
  3. Step 3: Cross multiply
    12,919,440.26x = 19,360,879.47 × 7,164,704.95
  4. Step 4: Simplify right side
    12,919,440.26x = 138,714,988,975,062.38
  5. Step 5: Solve for x
    x = 138,714,988,975,062.38/12,919,440.26
  6. Step 6: Final answer
    x = 10,736,919.42

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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.