Finding the Fourth Proportional to 86,841,709.30, 119,841,559.46 and 47,683,486.05
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Solution
The fourth proportional to 86,841,709.30, 119,841,559.46 and 47,683,486.05 is: 65,803,211.09
Step by Step Solution
- Step 1: Write the proportion equation
86,841,709.30 : 119,841,559.46 = 47,683,486.05 : x - Step 2: Convert to fraction form
86,841,709.30/119,841,559.46 = 47,683,486.05/x - Step 3: Cross multiply
86,841,709.30x = 119,841,559.46 × 47,683,486.05 - Step 4: Simplify right side
86,841,709.30x = 5,714,463,328,212,145 - Step 5: Solve for x
x = 5,714,463,328,212,145/86,841,709.30 - Step 6: Final answer
x = 65,803,211.09
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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.