Finding the Fourth Proportional to 38,957,751.36, 53,763,279.39 and 21,553,813.13
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Solution
The fourth proportional to 38,957,751.36, 53,763,279.39 and 21,553,813.13 is: 29,745,137.66
Step by Step Solution
- Step 1: Write the proportion equation
38,957,751.36 : 53,763,279.39 = 21,553,813.13 : x - Step 2: Convert to fraction form
38,957,751.36/53,763,279.39 = 21,553,813.13/x - Step 3: Cross multiply
38,957,751.36x = 53,763,279.39 × 21,553,813.13 - Step 4: Simplify right side
38,957,751.36x = 1,158,803,676,959,224 - Step 5: Solve for x
x = 1,158,803,676,959,224/38,957,751.36 - Step 6: Final answer
x = 29,745,137.66
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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.