Finding the Fourth Proportional to 21,537,129.17, 29,721,587.22 and 11,747,570.42
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Solution
The fourth proportional to 21,537,129.17, 29,721,587.22 and 11,747,570.42 is: 16,211,837.52
Step by Step Solution
- Step 1: Write the proportion equation
21,537,129.17 : 29,721,587.22 = 11,747,570.42 : x - Step 2: Convert to fraction form
21,537,129.17/29,721,587.22 = 11,747,570.42/x - Step 3: Cross multiply
21,537,129.17x = 29,721,587.22 × 11,747,570.42 - Step 4: Simplify right side
21,537,129.17x = 349,156,438,712,514.06 - Step 5: Solve for x
x = 349,156,438,712,514.06/21,537,129.17 - Step 6: Final answer
x = 16,211,837.52
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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.