Home / 13,076,178.40-18,045,071.76-7,275,515.68

Finding the Fourth Proportional to 13,076,178.40, 18,045,071.76 and 7,275,515.68

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Solution

The fourth proportional to 13,076,178.40, 18,045,071.76 and 7,275,515.68 is: 10,040,181.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076,178.40 : 18,045,071.76 = 7,275,515.68 : x
  2. Step 2: Convert to fraction form
    13,076,178.40/18,045,071.76 = 7,275,515.68/x
  3. Step 3: Cross multiply
    13,076,178.40x = 18,045,071.76 × 7,275,515.68
  4. Step 4: Simplify right side
    13,076,178.40x = 131,287,202,536,605.20
  5. Step 5: Solve for x
    x = 131,287,202,536,605.20/13,076,178.40
  6. Step 6: Final answer
    x = 10,040,181.35

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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.