Finding the Fourth Proportional to 318,858,181.25, 440,213,043.20 and 283,478,264.31
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Solution
The fourth proportional to 318,858,181.25, 440,213,043.20 and 283,478,264.31 is: 391,367,814.12
Step by Step Solution
- Step 1: Write the proportion equation
318,858,181.25 : 440,213,043.20 = 283,478,264.31 : x - Step 2: Convert to fraction form
318,858,181.25/440,213,043.20 = 283,478,264.31/x - Step 3: Cross multiply
318,858,181.25x = 440,213,043.20 × 283,478,264.31 - Step 4: Simplify right side
318,858,181.25x = 124,790,829,411,319,440 - Step 5: Solve for x
x = 124,790,829,411,319,440/318,858,181.25 - Step 6: Final answer
x = 391,367,814.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.