Finding the Fourth Proportional to 808,583,750.82, 1,115,845,575.33 and 437,305,781.79
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Solution
The fourth proportional to 808,583,750.82, 1,115,845,575.33 and 437,305,781.79 is: 603,481,978.44
Step by Step Solution
- Step 1: Write the proportion equation
808,583,750.82 : 1,115,845,575.33 = 437,305,781.79 : x - Step 2: Convert to fraction form
808,583,750.82/1,115,845,575.33 = 437,305,781.79/x - Step 3: Cross multiply
808,583,750.82x = 1,115,845,575.33 × 437,305,781.79 - Step 4: Simplify right side
808,583,750.82x = 487,965,721,676,597,952 - Step 5: Solve for x
x = 487,965,721,676,597,952/808,583,750.82 - Step 6: Final answer
x = 603,481,978.44
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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.