Finding the Fourth Proportional to 210,659,935.09, 290,769,132.63 and 122,570,946.73
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Solution
The fourth proportional to 210,659,935.09, 290,769,132.63 and 122,570,946.73 is: 169,181,899.02
Step by Step Solution
- Step 1: Write the proportion equation
210,659,935.09 : 290,769,132.63 = 122,570,946.73 : x - Step 2: Convert to fraction form
210,659,935.09/290,769,132.63 = 122,570,946.73/x - Step 3: Cross multiply
210,659,935.09x = 290,769,132.63 × 122,570,946.73 - Step 4: Simplify right side
210,659,935.09x = 35,639,847,866,320,036 - Step 5: Solve for x
x = 35,639,847,866,320,036/210,659,935.09 - Step 6: Final answer
x = 169,181,899.02
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1.5x scale
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.