Finding the Fourth Proportional to 299,901,538.94, 449,872,047.12 and 78,578,298.19
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Solution
The fourth proportional to 299,901,538.94, 449,872,047.12 and 78,578,298.19 is: 117,872,619.09
Step by Step Solution
- Step 1: Write the proportion equation
299,901,538.94 : 449,872,047.12 = 78,578,298.19 : x - Step 2: Convert to fraction form
299,901,538.94/449,872,047.12 = 78,578,298.19/x - Step 3: Cross multiply
299,901,538.94x = 449,872,047.12 × 78,578,298.19 - Step 4: Simplify right side
299,901,538.94x = 35,350,179,863,298,840 - Step 5: Solve for x
x = 35,350,179,863,298,840/299,901,538.94 - Step 6: Final answer
x = 117,872,619.09
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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.