Finding the Fourth Proportional to 21,386,874.17, 29,513,858.94 and 11,597,301.92
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Solution
The fourth proportional to 21,386,874.17, 29,513,858.94 and 11,597,301.92 is: 16,004,261.78
Step by Step Solution
- Step 1: Write the proportion equation
21,386,874.17 : 29,513,858.94 = 11,597,301.92 : x - Step 2: Convert to fraction form
21,386,874.17/29,513,858.94 = 11,597,301.92/x - Step 3: Cross multiply
21,386,874.17x = 29,513,858.94 × 11,597,301.92 - Step 4: Simplify right side
21,386,874.17x = 342,281,132,803,901.88 - Step 5: Solve for x
x = 342,281,132,803,901.88/21,386,874.17 - Step 6: Final answer
x = 16,004,261.78
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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.