Finding the Fourth Proportional to 115,465,683.12, 159,342,633.60 and 69,055,936.08
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Solution
The fourth proportional to 115,465,683.12, 159,342,633.60 and 69,055,936.08 is: 95,297,186.34
Step by Step Solution
- Step 1: Write the proportion equation
115,465,683.12 : 159,342,633.60 = 69,055,936.08 : x - Step 2: Convert to fraction form
115,465,683.12/159,342,633.60 = 69,055,936.08/x - Step 3: Cross multiply
115,465,683.12x = 159,342,633.60 × 69,055,936.08 - Step 4: Simplify right side
115,465,683.12x = 11,003,554,720,700,460 - Step 5: Solve for x
x = 11,003,554,720,700,460/115,465,683.12 - Step 6: Final answer
x = 95,297,186.34
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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.