Finding the Fourth Proportional to 21,202,707,034, 29,261,044,788.84 and 11,687,237,321.68
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Solution
The fourth proportional to 21,202,707,034, 29,261,044,788.84 and 11,687,237,321.68 is: 16,129,109,088.72
Step by Step Solution
- Step 1: Write the proportion equation
21,202,707,034 : 29,261,044,788.84 = 11,687,237,321.68 : x - Step 2: Convert to fraction form
21,202,707,034/29,261,044,788.84 = 11,687,237,321.68/x - Step 3: Cross multiply
21,202,707,034x = 29,261,044,788.84 × 11,687,237,321.68 - Step 4: Simplify right side
21,202,707,034x = 341,980,774,727,480,901,632 - Step 5: Solve for x
x = 341,980,774,727,480,901,632/21,202,707,034 - Step 6: Final answer
x = 16,129,109,088.72
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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.