Finding the Fourth Proportional to 186,320,879.51, 257,123,810.75 and 106,929,610.18
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Solution
The fourth proportional to 186,320,879.51, 257,123,810.75 and 106,929,610.18 is: 147,563,434.24
Step by Step Solution
- Step 1: Write the proportion equation
186,320,879.51 : 257,123,810.75 = 106,929,610.18 : x - Step 2: Convert to fraction form
186,320,879.51/257,123,810.75 = 106,929,610.18/x - Step 3: Cross multiply
186,320,879.51x = 257,123,810.75 × 106,929,610.18 - Step 4: Simplify right side
186,320,879.51x = 27,494,148,850,316,136 - Step 5: Solve for x
x = 27,494,148,850,316,136/186,320,879.51 - Step 6: Final answer
x = 147,563,434.24
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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.