Finding the Fourth Proportional to 121,303,878.08, 181,770,664.34 and 72,022,686.66
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Solution
The fourth proportional to 121,303,878.08, 181,770,664.34 and 72,022,686.66 is: 107,924,097.80
Step by Step Solution
- Step 1: Write the proportion equation
121,303,878.08 : 181,770,664.34 = 72,022,686.66 : x - Step 2: Convert to fraction form
121,303,878.08/181,770,664.34 = 72,022,686.66/x - Step 3: Cross multiply
121,303,878.08x = 181,770,664.34 × 72,022,686.66 - Step 4: Simplify right side
121,303,878.08x = 13,091,611,601,379,742 - Step 5: Solve for x
x = 13,091,611,601,379,742/121,303,878.08 - Step 6: Final answer
x = 107,924,097.80
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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.