Finding the Fourth Proportional to 28,489,817.50, 39,315,982.74 and 15,437,066.14
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Solution
The fourth proportional to 28,489,817.50, 39,315,982.74 and 15,437,066.14 is: 21,303,170.02
Step by Step Solution
- Step 1: Write the proportion equation
28,489,817.50 : 39,315,982.74 = 15,437,066.14 : x - Step 2: Convert to fraction form
28,489,817.50/39,315,982.74 = 15,437,066.14/x - Step 3: Cross multiply
28,489,817.50x = 39,315,982.74 × 15,437,066.14 - Step 4: Simplify right side
28,489,817.50x = 606,923,425,916,478.50 - Step 5: Solve for x
x = 606,923,425,916,478.50/28,489,817.50 - Step 6: Final answer
x = 21,303,170.02
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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.