Finding the Fourth Proportional to 19,860,444.97, 27,419,641.63 and 15,747,091.63
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Solution
The fourth proportional to 19,860,444.97, 27,419,641.63 and 15,747,091.63 is: 21,740,681.53
Step by Step Solution
- Step 1: Write the proportion equation
19,860,444.97 : 27,419,641.63 = 15,747,091.63 : x - Step 2: Convert to fraction form
19,860,444.97/27,419,641.63 = 15,747,091.63/x - Step 3: Cross multiply
19,860,444.97x = 27,419,641.63 × 15,747,091.63 - Step 4: Simplify right side
19,860,444.97x = 431,779,609,101,455.75 - Step 5: Solve for x
x = 431,779,609,101,455.75/19,860,444.97 - Step 6: Final answer
x = 21,740,681.53
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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.