Finding the Fourth Proportional to 28,679,143.96, 39,577,224.29 and 15,626,402.84
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Solution
The fourth proportional to 28,679,143.96, 39,577,224.29 and 15,626,402.84 is: 21,564,438.98
Step by Step Solution
- Step 1: Write the proportion equation
28,679,143.96 : 39,577,224.29 = 15,626,402.84 : x - Step 2: Convert to fraction form
28,679,143.96/39,577,224.29 = 15,626,402.84/x - Step 3: Cross multiply
28,679,143.96x = 39,577,224.29 × 15,626,402.84 - Step 4: Simplify right side
28,679,143.96x = 618,449,649,930,660.62 - Step 5: Solve for x
x = 618,449,649,930,660.62/28,679,143.96 - Step 6: Final answer
x = 21,564,438.98
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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.