Finding the Fourth Proportional to 497,173,349.13, 685,979,239.82 and 320,923,598.55
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Solution
The fourth proportional to 497,173,349.13, 685,979,239.82 and 320,923,598.55 is: 442,797,118.06
Step by Step Solution
- Step 1: Write the proportion equation
497,173,349.13 : 685,979,239.82 = 320,923,598.55 : x - Step 2: Convert to fraction form
497,173,349.13/685,979,239.82 = 320,923,598.55/x - Step 3: Cross multiply
497,173,349.13x = 685,979,239.82 × 320,923,598.55 - Step 4: Simplify right side
497,173,349.13x = 220,146,926,172,023,264 - Step 5: Solve for x
x = 220,146,926,172,023,264/497,173,349.13 - Step 6: Final answer
x = 442,797,118.06
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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.