Finding the Fourth Proportional to 887,505,309.63, 1,224,793,378.98 and 491,021,841.80
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Solution
The fourth proportional to 887,505,309.63, 1,224,793,378.98 and 491,021,841.80 is: 677,630,087.67
Step by Step Solution
- Step 1: Write the proportion equation
887,505,309.63 : 1,224,793,378.98 = 491,021,841.80 : x - Step 2: Convert to fraction form
887,505,309.63/1,224,793,378.98 = 491,021,841.80/x - Step 3: Cross multiply
887,505,309.63x = 1,224,793,378.98 × 491,021,841.80 - Step 4: Simplify right side
887,505,309.63x = 601,400,300,774,267,008 - Step 5: Solve for x
x = 601,400,300,774,267,008/887,505,309.63 - Step 6: Final answer
x = 677,630,087.67
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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.