Home / 12,889,626.89-17,788,152.77-7,384,065.80

Finding the Fourth Proportional to 12,889,626.89, 17,788,152.77 and 7,384,065.80

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Solution

The fourth proportional to 12,889,626.89, 17,788,152.77 and 7,384,065.80 is: 10,190,278.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,626.89 : 17,788,152.77 = 7,384,065.80 : x
  2. Step 2: Convert to fraction form
    12,889,626.89/17,788,152.77 = 7,384,065.80/x
  3. Step 3: Cross multiply
    12,889,626.89x = 17,788,152.77 × 7,384,065.80
  4. Step 4: Simplify right side
    12,889,626.89x = 131,348,890,388,271.17
  5. Step 5: Solve for x
    x = 131,348,890,388,271.17/12,889,626.89
  6. Step 6: Final answer
    x = 10,190,278.71

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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.