Finding the Fourth Proportional to 75,281,893.97, 103,889,064.85 and 42,237,581.49
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Solution
The fourth proportional to 75,281,893.97, 103,889,064.85 and 42,237,581.49 is: 58,287,891.17
Step by Step Solution
- Step 1: Write the proportion equation
75,281,893.97 : 103,889,064.85 = 42,237,581.49 : x - Step 2: Convert to fraction form
75,281,893.97/103,889,064.85 = 42,237,581.49/x - Step 3: Cross multiply
75,281,893.97x = 103,889,064.85 × 42,237,581.49 - Step 4: Simplify right side
75,281,893.97x = 4,388,022,842,416,175.50 - Step 5: Solve for x
x = 4,388,022,842,416,175.50/75,281,893.97 - Step 6: Final answer
x = 58,287,891.17
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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.