Finding the Fourth Proportional to 10,808,798.40, 14,916,031.20 and 5,979,936.96
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Solution
The fourth proportional to 10,808,798.40, 14,916,031.20 and 5,979,936.96 is: 8,252,251.82
Step by Step Solution
- Step 1: Write the proportion equation
10,808,798.40 : 14,916,031.20 = 5,979,936.96 : x - Step 2: Convert to fraction form
10,808,798.40/14,916,031.20 = 5,979,936.96/x - Step 3: Cross multiply
10,808,798.40x = 14,916,031.20 × 5,979,936.96 - Step 4: Simplify right side
10,808,798.40x = 89,196,926,269,393.14 - Step 5: Solve for x
x = 89,196,926,269,393.14/10,808,798.40 - Step 6: Final answer
x = 8,252,251.82
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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.