Finding the Fourth Proportional to 13,124,564.70, 19,686,847.05 and 7,361,382.30
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Solution
The fourth proportional to 13,124,564.70, 19,686,847.05 and 7,361,382.30 is: 11,042,073.45
Step by Step Solution
- Step 1: Write the proportion equation
13,124,564.70 : 19,686,847.05 = 7,361,382.30 : x - Step 2: Convert to fraction form
13,124,564.70/19,686,847.05 = 7,361,382.30/x - Step 3: Cross multiply
13,124,564.70x = 19,686,847.05 × 7,361,382.30 - Step 4: Simplify right side
13,124,564.70x = 144,922,407,416,677.22 - Step 5: Solve for x
x = 144,922,407,416,677.22/13,124,564.70 - Step 6: Final answer
x = 11,042,073.45
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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.