Home / 12,919,441.26-19,360,880.97-7,164,705.95

Finding the Fourth Proportional to 12,919,441.26, 19,360,880.97 and 7,164,705.95

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Solution

The fourth proportional to 12,919,441.26, 19,360,880.97 and 7,164,705.95 is: 10,736,920.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,441.26 : 19,360,880.97 = 7,164,705.95 : x
  2. Step 2: Convert to fraction form
    12,919,441.26/19,360,880.97 = 7,164,705.95/x
  3. Step 3: Cross multiply
    12,919,441.26x = 19,360,880.97 × 7,164,705.95
  4. Step 4: Simplify right side
    12,919,441.26x = 138,715,019,083,000.77
  5. Step 5: Solve for x
    x = 138,715,019,083,000.77/12,919,441.26
  6. Step 6: Final answer
    x = 10,736,920.92

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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.