Finding the Fourth Proportional to 19,753,786.23, 29,778,738.03 and 18,436,993.53
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Solution
The fourth proportional to 19,753,786.23, 29,778,738.03 and 18,436,993.53 is: 27,793,679.35
Step by Step Solution
- Step 1: Write the proportion equation
19,753,786.23 : 29,778,738.03 = 18,436,993.53 : x - Step 2: Convert to fraction form
19,753,786.23/29,778,738.03 = 18,436,993.53/x - Step 3: Cross multiply
19,753,786.23x = 29,778,738.03 × 18,436,993.53 - Step 4: Simplify right side
19,753,786.23x = 549,030,400,390,675 - Step 5: Solve for x
x = 549,030,400,390,675/19,753,786.23 - Step 6: Final answer
x = 27,793,679.35
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.