Finding the Fourth Proportional to 75,548,398.20, 113,338,343.70 and 43,173,799.80
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Solution
The fourth proportional to 75,548,398.20, 113,338,343.70 and 43,173,799.80 is: 64,769,698.33
Step by Step Solution
- Step 1: Write the proportion equation
75,548,398.20 : 113,338,343.70 = 43,173,799.80 : x - Step 2: Convert to fraction form
75,548,398.20/113,338,343.70 = 43,173,799.80/x - Step 3: Cross multiply
75,548,398.20x = 113,338,343.70 × 43,173,799.80 - Step 4: Simplify right side
75,548,398.20x = 4,893,246,960,567,391 - Step 5: Solve for x
x = 4,893,246,960,567,391/75,548,398.20 - Step 6: Final answer
x = 64,769,698.33
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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.