Finding the Fourth Proportional to 901,539,351.36, 1,244,121,531.21 and 499,678,725.06
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Solution
The fourth proportional to 901,539,351.36, 1,244,121,531.21 and 499,678,725.06 is: 689,555,103.28
Step by Step Solution
- Step 1: Write the proportion equation
901,539,351.36 : 1,244,121,531.21 = 499,678,725.06 : x - Step 2: Convert to fraction form
901,539,351.36/1,244,121,531.21 = 499,678,725.06/x - Step 3: Cross multiply
901,539,351.36x = 1,244,121,531.21 × 499,678,725.06 - Step 4: Simplify right side
901,539,351.36x = 621,661,060,534,707,840 - Step 5: Solve for x
x = 621,661,060,534,707,840/901,539,351.36 - Step 6: Final answer
x = 689,555,103.28
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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.