Finding the Fourth Proportional to 18,502,731.20, 27,756,740.64 and 5,724,326.72
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Solution
The fourth proportional to 18,502,731.20, 27,756,740.64 and 5,724,326.72 is: 8,587,308.02
Step by Step Solution
- Step 1: Write the proportion equation
18,502,731.20 : 27,756,740.64 = 5,724,326.72 : x - Step 2: Convert to fraction form
18,502,731.20/27,756,740.64 = 5,724,326.72/x - Step 3: Cross multiply
18,502,731.20x = 27,756,740.64 × 5,724,326.72 - Step 4: Simplify right side
18,502,731.20x = 158,888,652,105,661.91 - Step 5: Solve for x
x = 158,888,652,105,661.91/18,502,731.20 - Step 6: Final answer
x = 8,587,308.02
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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.