Finding the Fourth Proportional to 48,605,478.48, 67,043,955.15 and 31,174,213.68
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Solution
The fourth proportional to 48,605,478.48, 67,043,955.15 and 31,174,213.68 is: 43,000,144.21
Step by Step Solution
- Step 1: Write the proportion equation
48,605,478.48 : 67,043,955.15 = 31,174,213.68 : x - Step 2: Convert to fraction form
48,605,478.48/67,043,955.15 = 31,174,213.68/x - Step 3: Cross multiply
48,605,478.48x = 67,043,955.15 × 31,174,213.68 - Step 4: Simplify right side
48,605,478.48x = 2,090,042,583,798,436.50 - Step 5: Solve for x
x = 2,090,042,583,798,436.50/48,605,478.48 - Step 6: Final answer
x = 43,000,144.21
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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.