Finding the Fourth Proportional to 121,130,664.80, 181,444,054.80 and 100,975,272.80
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Solution
The fourth proportional to 121,130,664.80, 181,444,054.80 and 100,975,272.80 is: 151,252,888.45
Step by Step Solution
- Step 1: Write the proportion equation
121,130,664.80 : 181,444,054.80 = 100,975,272.80 : x - Step 2: Convert to fraction form
121,130,664.80/181,444,054.80 = 100,975,272.80/x - Step 3: Cross multiply
121,130,664.80x = 181,444,054.80 × 100,975,272.80 - Step 4: Simplify right side
121,130,664.80x = 18,321,362,931,368,152 - Step 5: Solve for x
x = 18,321,362,931,368,152/121,130,664.80 - Step 6: Final answer
x = 151,252,888.45
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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.