Finding the Fourth Proportional to 5,421,813.23, 7,483,203.68 and 3,680,043.91
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Solution
The fourth proportional to 5,421,813.23, 7,483,203.68 and 3,680,043.91 is: 5,079,208.18
Step by Step Solution
- Step 1: Write the proportion equation
5,421,813.23 : 7,483,203.68 = 3,680,043.91 : x - Step 2: Convert to fraction form
5,421,813.23/7,483,203.68 = 3,680,043.91/x - Step 3: Cross multiply
5,421,813.23x = 7,483,203.68 × 3,680,043.91 - Step 4: Simplify right side
5,421,813.23x = 27,538,518,129,873.59 - Step 5: Solve for x
x = 27,538,518,129,873.59/5,421,813.23 - Step 6: Final answer
x = 5,079,208.18
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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.