Finding the Fourth Proportional to 11,405,423.12, 15,739,483.56 and 6,248,979.92
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Solution
The fourth proportional to 11,405,423.12, 15,739,483.56 and 6,248,979.92 is: 8,623,592.10
Step by Step Solution
- Step 1: Write the proportion equation
11,405,423.12 : 15,739,483.56 = 6,248,979.92 : x - Step 2: Convert to fraction form
11,405,423.12/15,739,483.56 = 6,248,979.92/x - Step 3: Cross multiply
11,405,423.12x = 15,739,483.56 × 6,248,979.92 - Step 4: Simplify right side
11,405,423.12x = 98,355,716,717,610.12 - Step 5: Solve for x
x = 98,355,716,717,610.12/11,405,423.12 - Step 6: Final answer
x = 8,623,592.10
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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.