Finding the Fourth Proportional to 990,845,842.42, 1,486,848,324.86 and 369,490,339.63
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Solution
The fourth proportional to 990,845,842.42, 1,486,848,324.86 and 369,490,339.63 is: 554,451,630.12
Step by Step Solution
- Step 1: Write the proportion equation
990,845,842.42 : 1,486,848,324.86 = 369,490,339.63 : x - Step 2: Convert to fraction form
990,845,842.42/1,486,848,324.86 = 369,490,339.63/x - Step 3: Cross multiply
990,845,842.42x = 1,486,848,324.86 × 369,490,339.63 - Step 4: Simplify right side
990,845,842.42x = 549,376,092,532,211,072 - Step 5: Solve for x
x = 549,376,092,532,211,072/990,845,842.42 - Step 6: Final answer
x = 554,451,630.12
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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.