Finding the Fourth Proportional to 6,641,312.35, 9,161,879.70 and 3,886,309.75
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Solution
The fourth proportional to 6,641,312.35, 9,161,879.70 and 3,886,309.75 is: 5,361,275.08
Step by Step Solution
- Step 1: Write the proportion equation
6,641,312.35 : 9,161,879.70 = 3,886,309.75 : x - Step 2: Convert to fraction form
6,641,312.35/9,161,879.70 = 3,886,309.75/x - Step 3: Cross multiply
6,641,312.35x = 9,161,879.70 × 3,886,309.75 - Step 4: Simplify right side
6,641,312.35x = 35,605,902,406,437.07 - Step 5: Solve for x
x = 35,605,902,406,437.07/6,641,312.35 - Step 6: Final answer
x = 5,361,275.08
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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.