Finding the Fourth Proportional to 7,528,676.19, 10,389,638.88 and 4,090,917.12
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Solution
The fourth proportional to 7,528,676.19, 10,389,638.88 and 4,090,917.12 is: 5,645,501.35
Step by Step Solution
- Step 1: Write the proportion equation
7,528,676.19 : 10,389,638.88 = 4,090,917.12 : x - Step 2: Convert to fraction form
7,528,676.19/10,389,638.88 = 4,090,917.12/x - Step 3: Cross multiply
7,528,676.19x = 10,389,638.88 × 4,090,917.12 - Step 4: Simplify right side
7,528,676.19x = 42,503,151,564,809.63 - Step 5: Solve for x
x = 42,503,151,564,809.63/7,528,676.19 - Step 6: Final answer
x = 5,645,501.35
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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.