Finding the Fourth Proportional to 74,102,105.56, 102,307,387.60 and 47,686,354.79
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Solution
The fourth proportional to 74,102,105.56, 102,307,387.60 and 47,686,354.79 is: 65,837,081.76
Step by Step Solution
- Step 1: Write the proportion equation
74,102,105.56 : 102,307,387.60 = 47,686,354.79 : x - Step 2: Convert to fraction form
74,102,105.56/102,307,387.60 = 47,686,354.79/x - Step 3: Cross multiply
74,102,105.56x = 102,307,387.60 × 47,686,354.79 - Step 4: Simplify right side
74,102,105.56x = 4,878,666,382,100,893 - Step 5: Solve for x
x = 4,878,666,382,100,893/74,102,105.56 - Step 6: Final answer
x = 65,837,081.76
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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.