Finding the Fourth Proportional to 7,420,088.54, 10,239,699.34 and 4,112,593.68
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Solution
The fourth proportional to 7,420,088.54, 10,239,699.34 and 4,112,593.68 is: 5,675,366.62
Step by Step Solution
- Step 1: Write the proportion equation
7,420,088.54 : 10,239,699.34 = 4,112,593.68 : x - Step 2: Convert to fraction form
7,420,088.54/10,239,699.34 = 4,112,593.68/x - Step 3: Cross multiply
7,420,088.54x = 10,239,699.34 × 4,112,593.68 - Step 4: Simplify right side
7,420,088.54x = 42,111,722,790,784.17 - Step 5: Solve for x
x = 42,111,722,790,784.17/7,420,088.54 - Step 6: Final answer
x = 5,675,366.62
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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.