Finding the Fourth Proportional to 154,588,989.26, 213,331,547.67 and 84,973,629.98
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Solution
The fourth proportional to 154,588,989.26, 213,331,547.67 and 84,973,629.98 is: 117,262,918.15
Step by Step Solution
- Step 1: Write the proportion equation
154,588,989.26 : 213,331,547.67 = 84,973,629.98 : x - Step 2: Convert to fraction form
154,588,989.26/213,331,547.67 = 84,973,629.98/x - Step 3: Cross multiply
154,588,989.26x = 213,331,547.67 × 84,973,629.98 - Step 4: Simplify right side
154,588,989.26x = 18,127,555,994,771,312 - Step 5: Solve for x
x = 18,127,555,994,771,312/154,588,989.26 - Step 6: Final answer
x = 117,262,918.15
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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.