Finding the Fourth Proportional to 810,691,593.08, 1,118,756,046.99 and 439,413,875.96
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Solution
The fourth proportional to 810,691,593.08, 1,118,756,046.99 and 439,413,875.96 is: 606,392,042.37
Step by Step Solution
- Step 1: Write the proportion equation
810,691,593.08 : 1,118,756,046.99 = 439,413,875.96 : x - Step 2: Convert to fraction form
810,691,593.08/1,118,756,046.99 = 439,413,875.96/x - Step 3: Cross multiply
810,691,593.08x = 1,118,756,046.99 × 439,413,875.96 - Step 4: Simplify right side
810,691,593.08x = 491,596,930,855,969,984 - Step 5: Solve for x
x = 491,596,930,855,969,984/810,691,593.08 - Step 6: Final answer
x = 606,392,042.37
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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.