Finding the Fourth Proportional to 55,124,979.65, 82,699,926.65 and 18,236,783.07
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Solution
The fourth proportional to 55,124,979.65, 82,699,926.65 and 18,236,783.07 is: 27,359,295.76
Step by Step Solution
- Step 1: Write the proportion equation
55,124,979.65 : 82,699,926.65 = 18,236,783.07 : x - Step 2: Convert to fraction form
55,124,979.65/82,699,926.65 = 18,236,783.07/x - Step 3: Cross multiply
55,124,979.65x = 82,699,926.65 × 18,236,783.07 - Step 4: Simplify right side
55,124,979.65x = 1,508,180,622,198,166 - Step 5: Solve for x
x = 1,508,180,622,198,166/55,124,979.65 - Step 6: Final answer
x = 27,359,295.76
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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.