Finding the Fourth Proportional to 191,346,602.63, 264,139,934.11 and 128,659,036.05
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Solution
The fourth proportional to 191,346,602.63, 264,139,934.11 and 128,659,036.05 is: 177,604,351.68
Step by Step Solution
- Step 1: Write the proportion equation
191,346,602.63 : 264,139,934.11 = 128,659,036.05 : x - Step 2: Convert to fraction form
191,346,602.63/264,139,934.11 = 128,659,036.05/x - Step 3: Cross multiply
191,346,602.63x = 264,139,934.11 × 128,659,036.05 - Step 4: Simplify right side
191,346,602.63x = 33,983,989,304,581,464 - Step 5: Solve for x
x = 33,983,989,304,581,464/191,346,602.63 - Step 6: Final answer
x = 177,604,351.68
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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.