Finding the Fourth Proportional to 7,980,298.41, 11,972,129.13 and 2,588,528.49
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Solution
The fourth proportional to 7,980,298.41, 11,972,129.13 and 2,588,528.49 is: 3,883,338.16
Step by Step Solution
- Step 1: Write the proportion equation
7,980,298.41 : 11,972,129.13 = 2,588,528.49 : x - Step 2: Convert to fraction form
7,980,298.41/11,972,129.13 = 2,588,528.49/x - Step 3: Cross multiply
7,980,298.41x = 11,972,129.13 × 2,588,528.49 - Step 4: Simplify right side
7,980,298.41x = 30,990,197,338,963.92 - Step 5: Solve for x
x = 30,990,197,338,963.92/7,980,298.41 - Step 6: Final answer
x = 3,883,338.16
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.