Finding the Fourth Proportional to 6,081,903.59, 8,348,319.70 and 5,378,156.15
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Solution
The fourth proportional to 6,081,903.59, 8,348,319.70 and 5,378,156.15 is: 7,382,321.38
Step by Step Solution
- Step 1: Write the proportion equation
6,081,903.59 : 8,348,319.70 = 5,378,156.15 : x - Step 2: Convert to fraction form
6,081,903.59/8,348,319.70 = 5,378,156.15/x - Step 3: Cross multiply
6,081,903.59x = 8,348,319.70 × 5,378,156.15 - Step 4: Simplify right side
6,081,903.59x = 44,898,566,881,534.16 - Step 5: Solve for x
x = 44,898,566,881,534.16/6,081,903.59 - Step 6: Final answer
x = 7,382,321.38
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.