Finding the Fourth Proportional to 13,508,767.77, 18,641,876.98 and 7,313,764.96
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Solution
The fourth proportional to 13,508,767.77, 18,641,876.98 and 7,313,764.96 is: 10,092,875.15
Step by Step Solution
- Step 1: Write the proportion equation
13,508,767.77 : 18,641,876.98 = 7,313,764.96 : x - Step 2: Convert to fraction form
13,508,767.77/18,641,876.98 = 7,313,764.96/x - Step 3: Cross multiply
13,508,767.77x = 18,641,876.98 × 7,313,764.96 - Step 4: Simplify right side
13,508,767.77x = 136,342,306,585,043.25 - Step 5: Solve for x
x = 136,342,306,585,043.25/13,508,767.77 - Step 6: Final answer
x = 10,092,875.15
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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.