Finding the Fourth Proportional to 23,133,918.40, 31,884,959.28 and 15,385,114.96
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Solution
The fourth proportional to 23,133,918.40, 31,884,959.28 and 15,385,114.96 is: 21,204,957.83
Step by Step Solution
- Step 1: Write the proportion equation
23,133,918.40 : 31,884,959.28 = 15,385,114.96 : x - Step 2: Convert to fraction form
23,133,918.40/31,884,959.28 = 15,385,114.96/x - Step 3: Cross multiply
23,133,918.40x = 31,884,959.28 × 15,385,114.96 - Step 4: Simplify right side
23,133,918.40x = 490,553,764,017,718.88 - Step 5: Solve for x
x = 490,553,764,017,718.88/23,133,918.40 - Step 6: Final answer
x = 21,204,957.83
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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.