Finding the Fourth Proportional to 17,681,990.09, 24,387,993.15 and 15,613,356.00
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Solution
The fourth proportional to 17,681,990.09, 24,387,993.15 and 15,613,356.00 is: 21,534,816.91
Step by Step Solution
- Step 1: Write the proportion equation
17,681,990.09 : 24,387,993.15 = 15,613,356.00 : x - Step 2: Convert to fraction form
17,681,990.09/24,387,993.15 = 15,613,356.00/x - Step 3: Cross multiply
17,681,990.09x = 24,387,993.15 × 15,613,356.00 - Step 4: Simplify right side
17,681,990.09x = 380,778,419,160,058.94 - Step 5: Solve for x
x = 380,778,419,160,058.94/17,681,990.09 - Step 6: Final answer
x = 21,534,816.91
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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.