Finding the Fourth Proportional to 20,763,058.14, 28,444,913.73 and 19,986,781.50
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Solution
The fourth proportional to 20,763,058.14, 28,444,913.73 and 19,986,781.50 is: 27,381,432.53
Step by Step Solution
- Step 1: Write the proportion equation
20,763,058.14 : 28,444,913.73 = 19,986,781.50 : x - Step 2: Convert to fraction form
20,763,058.14/28,444,913.73 = 19,986,781.50/x - Step 3: Cross multiply
20,763,058.14x = 28,444,913.73 × 19,986,781.50 - Step 4: Simplify right side
20,763,058.14x = 568,522,275,507,860 - Step 5: Solve for x
x = 568,522,275,507,860/20,763,058.14 - Step 6: Final answer
x = 27,381,432.53
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.