Finding the Fourth Proportional to 5,169,579.70, 7,133,827.53 and 2,877,691.18
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Solution
The fourth proportional to 5,169,579.70, 7,133,827.53 and 2,877,691.18 is: 3,971,106.70
Step by Step Solution
- Step 1: Write the proportion equation
5,169,579.70 : 7,133,827.53 = 2,877,691.18 : x - Step 2: Convert to fraction form
5,169,579.70/7,133,827.53 = 2,877,691.18/x - Step 3: Cross multiply
5,169,579.70x = 7,133,827.53 × 2,877,691.18 - Step 4: Simplify right side
5,169,579.70x = 20,528,952,562,722.19 - Step 5: Solve for x
x = 20,528,952,562,722.19/5,169,579.70 - Step 6: Final answer
x = 3,971,106.70
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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.