Finding the Fourth Proportional to 7,242,103.92, 9,989,946.18 and 4,521,126
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Solution
The fourth proportional to 7,242,103.92, 9,989,946.18 and 4,521,126 is: 6,236,558.59
Step by Step Solution
- Step 1: Write the proportion equation
7,242,103.92 : 9,989,946.18 = 4,521,126 : x - Step 2: Convert to fraction form
7,242,103.92/9,989,946.18 = 4,521,126/x - Step 3: Cross multiply
7,242,103.92x = 9,989,946.18 × 4,521,126 - Step 4: Simplify right side
7,242,103.92x = 45,165,805,412,998.68 - Step 5: Solve for x
x = 45,165,805,412,998.68/7,242,103.92 - Step 6: Final answer
x = 6,236,558.59
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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.