Finding the Fourth Proportional to 18,409,806.89, 27,621,443.99 and 8,566,564.82
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Solution
The fourth proportional to 18,409,806.89, 27,621,443.99 and 8,566,564.82 is: 12,852,980.57
Step by Step Solution
- Step 1: Write the proportion equation
18,409,806.89 : 27,621,443.99 = 8,566,564.82 : x - Step 2: Convert to fraction form
18,409,806.89/27,621,443.99 = 8,566,564.82/x - Step 3: Cross multiply
18,409,806.89x = 27,621,443.99 × 8,566,564.82 - Step 4: Simplify right side
18,409,806.89x = 236,620,890,285,976.06 - Step 5: Solve for x
x = 236,620,890,285,976.06/18,409,806.89 - Step 6: Final answer
x = 12,852,980.57
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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.