Finding the Fourth Proportional to 21,808,264.29, 30,090,119.19 and 12,386,959.49
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Solution
The fourth proportional to 21,808,264.29, 30,090,119.19 and 12,386,959.49 is: 17,091,001.94
Step by Step Solution
- Step 1: Write the proportion equation
21,808,264.29 : 30,090,119.19 = 12,386,959.49 : x - Step 2: Convert to fraction form
21,808,264.29/30,090,119.19 = 12,386,959.49/x - Step 3: Cross multiply
21,808,264.29x = 30,090,119.19 × 12,386,959.49 - Step 4: Simplify right side
21,808,264.29x = 372,725,087,305,351 - Step 5: Solve for x
x = 372,725,087,305,351/21,808,264.29 - Step 6: Final answer
x = 17,091,001.94
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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.