Finding the Fourth Proportional to 13,465,689.88, 18,583,110.60 and 7,963,781.08
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Solution
The fourth proportional to 13,465,689.88, 18,583,110.60 and 7,963,781.08 is: 10,990,289.09
Step by Step Solution
- Step 1: Write the proportion equation
13,465,689.88 : 18,583,110.60 = 7,963,781.08 : x - Step 2: Convert to fraction form
13,465,689.88/18,583,110.60 = 7,963,781.08/x - Step 3: Cross multiply
13,465,689.88x = 18,583,110.60 × 7,963,781.08 - Step 4: Simplify right side
13,465,689.88x = 147,991,824,603,827.47 - Step 5: Solve for x
x = 147,991,824,603,827.47/13,465,689.88 - Step 6: Final answer
x = 10,990,289.09
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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.