Finding the Fourth Proportional to 19,453,305.47, 26,848,827.38 and 13,170,983.93
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Solution
The fourth proportional to 19,453,305.47, 26,848,827.38 and 13,170,983.93 is: 18,178,168.98
Step by Step Solution
- Step 1: Write the proportion equation
19,453,305.47 : 26,848,827.38 = 13,170,983.93 : x - Step 2: Convert to fraction form
19,453,305.47/26,848,827.38 = 13,170,983.93/x - Step 3: Cross multiply
19,453,305.47x = 26,848,827.38 × 13,170,983.93 - Step 4: Simplify right side
19,453,305.47x = 353,625,473,961,324 - Step 5: Solve for x
x = 353,625,473,961,324/19,453,305.47 - Step 6: Final answer
x = 18,178,168.98
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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.