Finding the Fourth Proportional to 21,182,001.84, 29,196,229.68 and 14,979,047.76
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Solution
The fourth proportional to 21,182,001.84, 29,196,229.68 and 14,979,047.76 is: 20,646,382.82
Step by Step Solution
- Step 1: Write the proportion equation
21,182,001.84 : 29,196,229.68 = 14,979,047.76 : x - Step 2: Convert to fraction form
21,182,001.84/29,196,229.68 = 14,979,047.76/x - Step 3: Cross multiply
21,182,001.84x = 29,196,229.68 × 14,979,047.76 - Step 4: Simplify right side
21,182,001.84x = 437,331,718,788,649.50 - Step 5: Solve for x
x = 437,331,718,788,649.50/21,182,001.84 - Step 6: Final answer
x = 20,646,382.82
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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.