Finding the Fourth Proportional to 21,481,901.08, 29,645,665.04 and 13,226,725.80
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Solution
The fourth proportional to 21,481,901.08, 29,645,665.04 and 13,226,725.80 is: 18,253,276.62
Step by Step Solution
- Step 1: Write the proportion equation
21,481,901.08 : 29,645,665.04 = 13,226,725.80 : x - Step 2: Convert to fraction form
21,481,901.08/29,645,665.04 = 13,226,725.80/x - Step 3: Cross multiply
21,481,901.08x = 29,645,665.04 × 13,226,725.80 - Step 4: Simplify right side
21,481,901.08x = 392,115,082,642,726.06 - Step 5: Solve for x
x = 392,115,082,642,726.06/21,481,901.08 - Step 6: Final answer
x = 18,253,276.62
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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.