Finding the Fourth Proportional to 19,715,656.47, 27,208,650.52 and 11,877,636.08
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Solution
The fourth proportional to 19,715,656.47, 27,208,650.52 and 11,877,636.08 is: 16,391,767.11
Step by Step Solution
- Step 1: Write the proportion equation
19,715,656.47 : 27,208,650.52 = 11,877,636.08 : x - Step 2: Convert to fraction form
19,715,656.47/27,208,650.52 = 11,877,636.08/x - Step 3: Cross multiply
19,715,656.47x = 27,208,650.52 × 11,877,636.08 - Step 4: Simplify right side
19,715,656.47x = 323,174,449,120,519.69 - Step 5: Solve for x
x = 323,174,449,120,519.69/19,715,656.47 - Step 6: Final answer
x = 16,391,767.11
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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.