Finding the Fourth Proportional to 13,500,317.07, 18,630,327.92 and 7,388,730.99
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Solution
The fourth proportional to 13,500,317.07, 18,630,327.92 and 7,388,730.99 is: 10,196,388.76
Step by Step Solution
- Step 1: Write the proportion equation
13,500,317.07 : 18,630,327.92 = 7,388,730.99 : x - Step 2: Convert to fraction form
13,500,317.07/18,630,327.92 = 7,388,730.99/x - Step 3: Cross multiply
13,500,317.07x = 18,630,327.92 × 7,388,730.99 - Step 4: Simplify right side
13,500,317.07x = 137,654,481,219,422.58 - Step 5: Solve for x
x = 137,654,481,219,422.58/13,500,317.07 - Step 6: Final answer
x = 10,196,388.76
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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.