Finding the Fourth Proportional to 129,452,329.61, 194,177,165.36 and 74,830,159.33
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Solution
The fourth proportional to 129,452,329.61, 194,177,165.36 and 74,830,159.33 is: 112,244,470.73
Step by Step Solution
- Step 1: Write the proportion equation
129,452,329.61 : 194,177,165.36 = 74,830,159.33 : x - Step 2: Convert to fraction form
129,452,329.61/194,177,165.36 = 74,830,159.33/x - Step 3: Cross multiply
129,452,329.61x = 194,177,165.36 × 74,830,159.33 - Step 4: Simplify right side
129,452,329.61x = 14,530,308,221,276,962 - Step 5: Solve for x
x = 14,530,308,221,276,962/129,452,329.61 - Step 6: Final answer
x = 112,244,470.73
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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.