Finding the Fourth Proportional to 42,580,397.70, 63,869,674.37 and 11,874,157.74
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Solution
The fourth proportional to 42,580,397.70, 63,869,674.37 and 11,874,157.74 is: 17,810,979.45
Step by Step Solution
- Step 1: Write the proportion equation
42,580,397.70 : 63,869,674.37 = 11,874,157.74 : x - Step 2: Convert to fraction form
42,580,397.70/63,869,674.37 = 11,874,157.74/x - Step 3: Cross multiply
42,580,397.70x = 63,869,674.37 × 11,874,157.74 - Step 4: Simplify right side
42,580,397.70x = 758,398,588,212,444.38 - Step 5: Solve for x
x = 758,398,588,212,444.38/42,580,397.70 - Step 6: Final answer
x = 17,810,979.45
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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.