Finding the Fourth Proportional to 13,330,543.68, 18,396,113.76 and 7,218,970.56
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Solution
The fourth proportional to 13,330,543.68, 18,396,113.76 and 7,218,970.56 is: 9,962,159.60
Step by Step Solution
- Step 1: Write the proportion equation
13,330,543.68 : 18,396,113.76 = 7,218,970.56 : x - Step 2: Convert to fraction form
13,330,543.68/18,396,113.76 = 7,218,970.56/x - Step 3: Cross multiply
13,330,543.68x = 18,396,113.76 × 7,218,970.56 - Step 4: Simplify right side
13,330,543.68x = 132,801,003,651,850.91 - Step 5: Solve for x
x = 132,801,003,651,850.91/13,330,543.68 - Step 6: Final answer
x = 9,962,159.60
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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.