Finding the Fourth Proportional to 115,090,225.94, 172,486,534.62 and 86,108,976.74
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Solution
The fourth proportional to 115,090,225.94, 172,486,534.62 and 86,108,976.74 is: 129,052,131.72
Step by Step Solution
- Step 1: Write the proportion equation
115,090,225.94 : 172,486,534.62 = 86,108,976.74 : x - Step 2: Convert to fraction form
115,090,225.94/172,486,534.62 = 86,108,976.74/x - Step 3: Cross multiply
115,090,225.94x = 172,486,534.62 × 86,108,976.74 - Step 4: Simplify right side
115,090,225.94x = 14,852,638,997,556,784 - Step 5: Solve for x
x = 14,852,638,997,556,784/115,090,225.94 - Step 6: Final answer
x = 129,052,131.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.