Finding the Fourth Proportional to 193,552,387.20, 290,328,580.80 and 129,055,132.80
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Solution
The fourth proportional to 193,552,387.20, 290,328,580.80 and 129,055,132.80 is: 193,582,699.20
Step by Step Solution
- Step 1: Write the proportion equation
193,552,387.20 : 290,328,580.80 = 129,055,132.80 : x - Step 2: Convert to fraction form
193,552,387.20/290,328,580.80 = 129,055,132.80/x - Step 3: Cross multiply
193,552,387.20x = 290,328,580.80 × 129,055,132.80 - Step 4: Simplify right side
193,552,387.20x = 37,468,393,550,779,528 - Step 5: Solve for x
x = 37,468,393,550,779,528/193,552,387.20 - Step 6: Final answer
x = 193,582,699.20
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1.5x scale
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.