Finding the Fourth Proportional to 1,174,281,449.09, 1,620,514,806.15 and 691,494,463.13
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Solution
The fourth proportional to 1,174,281,449.09, 1,620,514,806.15 and 691,494,463.13 is: 954,266,131.63
Step by Step Solution
- Step 1: Write the proportion equation
1,174,281,449.09 : 1,620,514,806.15 = 691,494,463.13 : x - Step 2: Convert to fraction form
1,174,281,449.09/1,620,514,806.15 = 691,494,463.13/x - Step 3: Cross multiply
1,174,281,449.09x = 1,620,514,806.15 × 691,494,463.13 - Step 4: Simplify right side
1,174,281,449.09x = 1,120,577,015,864,807,808 - Step 5: Solve for x
x = 1,120,577,015,864,807,808/1,174,281,449.09 - Step 6: Final answer
x = 954,266,131.63
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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.