Finding the Fourth Proportional to 19,659,809.68, 29,489,689.04 and 5,282,877.70
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Solution
The fourth proportional to 19,659,809.68, 29,489,689.04 and 5,282,877.70 is: 7,924,309.70
Step by Step Solution
- Step 1: Write the proportion equation
19,659,809.68 : 29,489,689.04 = 5,282,877.70 : x - Step 2: Convert to fraction form
19,659,809.68/29,489,689.04 = 5,282,877.70/x - Step 3: Cross multiply
19,659,809.68x = 29,489,689.04 × 5,282,877.70 - Step 4: Simplify right side
19,659,809.68x = 155,790,420,609,350.41 - Step 5: Solve for x
x = 155,790,420,609,350.41/19,659,809.68 - Step 6: Final answer
x = 7,924,309.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.