Finding the Fourth Proportional to 5,185,072.17, 7,154,331.64 and 2,979,509.09
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Solution
The fourth proportional to 5,185,072.17, 7,154,331.64 and 2,979,509.09 is: 4,111,108.85
Step by Step Solution
- Step 1: Write the proportion equation
5,185,072.17 : 7,154,331.64 = 2,979,509.09 : x - Step 2: Convert to fraction form
5,185,072.17/7,154,331.64 = 2,979,509.09/x - Step 3: Cross multiply
5,185,072.17x = 7,154,331.64 × 2,979,509.09 - Step 4: Simplify right side
5,185,072.17x = 21,316,396,111,034.18 - Step 5: Solve for x
x = 21,316,396,111,034.18/5,185,072.17 - Step 6: Final answer
x = 4,111,108.85
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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.