Finding the Fourth Proportional to 538,179,023.20, 807,268,534.80 and 266,081,231.20
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Solution
The fourth proportional to 538,179,023.20, 807,268,534.80 and 266,081,231.20 is: 399,121,846.80
Step by Step Solution
- Step 1: Write the proportion equation
538,179,023.20 : 807,268,534.80 = 266,081,231.20 : x - Step 2: Convert to fraction form
538,179,023.20/807,268,534.80 = 266,081,231.20/x - Step 3: Cross multiply
538,179,023.20x = 807,268,534.80 × 266,081,231.20 - Step 4: Simplify right side
538,179,023.20x = 214,799,005,648,604,032 - Step 5: Solve for x
x = 214,799,005,648,604,032/538,179,023.20 - Step 6: Final answer
x = 399,121,846.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.