Finding the Fourth Proportional to 56,168,190.62, 77,512,208.07 and 31,388,377.49
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Solution
The fourth proportional to 56,168,190.62, 77,512,208.07 and 31,388,377.49 is: 43,316,019.63
Step by Step Solution
- Step 1: Write the proportion equation
56,168,190.62 : 77,512,208.07 = 31,388,377.49 : x - Step 2: Convert to fraction form
56,168,190.62/77,512,208.07 = 31,388,377.49/x - Step 3: Cross multiply
56,168,190.62x = 77,512,208.07 × 31,388,377.49 - Step 4: Simplify right side
56,168,190.62x = 2,432,982,447,005,400.50 - Step 5: Solve for x
x = 2,432,982,447,005,400.50/56,168,190.62 - Step 6: Final answer
x = 43,316,019.63
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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.