Finding the Fourth Proportional to 76,703,632.09, 115,055,449.09 and 18,411,309.94
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Solution
The fourth proportional to 76,703,632.09, 115,055,449.09 and 18,411,309.94 is: 27,616,965.13
Step by Step Solution
- Step 1: Write the proportion equation
76,703,632.09 : 115,055,449.09 = 18,411,309.94 : x - Step 2: Convert to fraction form
76,703,632.09/115,055,449.09 = 18,411,309.94/x - Step 3: Cross multiply
76,703,632.09x = 115,055,449.09 × 18,411,309.94 - Step 4: Simplify right side
76,703,632.09x = 2,118,321,532,814,547 - Step 5: Solve for x
x = 2,118,321,532,814,547/76,703,632.09 - Step 6: Final answer
x = 27,616,965.13
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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.