Finding the Fourth Proportional to 121,303,860.36, 181,770,637.88 and 72,022,669.09
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Solution
The fourth proportional to 121,303,860.36, 181,770,637.88 and 72,022,669.09 is: 107,924,071.53
Step by Step Solution
- Step 1: Write the proportion equation
121,303,860.36 : 181,770,637.88 = 72,022,669.09 : x - Step 2: Convert to fraction form
121,303,860.36/181,770,637.88 = 72,022,669.09/x - Step 3: Cross multiply
121,303,860.36x = 181,770,637.88 × 72,022,669.09 - Step 4: Simplify right side
121,303,860.36x = 13,091,606,502,035,090 - Step 5: Solve for x
x = 13,091,606,502,035,090/121,303,860.36 - Step 6: Final answer
x = 107,924,071.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.