Finding the Fourth Proportional to 27,816,895.53, 38,389,673.73 and 15,430,979.70
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Solution
The fourth proportional to 27,816,895.53, 38,389,673.73 and 15,430,979.70 is: 21,296,059.99
Step by Step Solution
- Step 1: Write the proportion equation
27,816,895.53 : 38,389,673.73 = 15,430,979.70 : x - Step 2: Convert to fraction form
27,816,895.53/38,389,673.73 = 15,430,979.70/x - Step 3: Cross multiply
27,816,895.53x = 38,389,673.73 × 15,430,979.70 - Step 4: Simplify right side
27,816,895.53x = 592,390,276,017,253.25 - Step 5: Solve for x
x = 592,390,276,017,253.25/27,816,895.53 - Step 6: Final answer
x = 21,296,059.99
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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.