Finding the Fourth Proportional to 199,392,643.60, 299,088,965.40 and 122,466,230.80
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Solution
The fourth proportional to 199,392,643.60, 299,088,965.40 and 122,466,230.80 is: 183,699,346.20
Step by Step Solution
- Step 1: Write the proportion equation
199,392,643.60 : 299,088,965.40 = 122,466,230.80 : x - Step 2: Convert to fraction form
199,392,643.60/299,088,965.40 = 122,466,230.80/x - Step 3: Cross multiply
199,392,643.60x = 299,088,965.40 × 122,466,230.80 - Step 4: Simplify right side
199,392,643.60x = 36,628,298,266,409,608 - Step 5: Solve for x
x = 36,628,298,266,409,608/199,392,643.60 - Step 6: Final answer
x = 183,699,346.20
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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.