Finding the Fourth Proportional to 121,017,619.44, 181,528,008.84 and 40,238,587.44
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Solution
The fourth proportional to 121,017,619.44, 181,528,008.84 and 40,238,587.44 is: 60,358,406.41
Step by Step Solution
- Step 1: Write the proportion equation
121,017,619.44 : 181,528,008.84 = 40,238,587.44 : x - Step 2: Convert to fraction form
121,017,619.44/181,528,008.84 = 40,238,587.44/x - Step 3: Cross multiply
121,017,619.44x = 181,528,008.84 × 40,238,587.44 - Step 4: Simplify right side
121,017,619.44x = 7,304,430,656,517,433 - Step 5: Solve for x
x = 7,304,430,656,517,433/121,017,619.44 - Step 6: Final answer
x = 60,358,406.41
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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.