Finding the Fourth Proportional to 5,303,176.34, 7,317,838.05 and 2,979,699.68
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Solution
The fourth proportional to 5,303,176.34, 7,317,838.05 and 2,979,699.68 is: 4,111,679.17
Step by Step Solution
- Step 1: Write the proportion equation
5,303,176.34 : 7,317,838.05 = 2,979,699.68 : x - Step 2: Convert to fraction form
5,303,176.34/7,317,838.05 = 2,979,699.68/x - Step 3: Cross multiply
5,303,176.34x = 7,317,838.05 × 2,979,699.68 - Step 4: Simplify right side
5,303,176.34x = 21,804,959,659,287.63 - Step 5: Solve for x
x = 21,804,959,659,287.63/5,303,176.34 - Step 6: Final answer
x = 4,111,679.17
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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.