Finding the Fourth Proportional to 137,468,368.53, 189,713,158.65 and 85,274,221.14
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Solution
The fourth proportional to 137,468,368.53, 189,713,158.65 and 85,274,221.14 is: 117,682,649.59
Step by Step Solution
- Step 1: Write the proportion equation
137,468,368.53 : 189,713,158.65 = 85,274,221.14 : x - Step 2: Convert to fraction form
137,468,368.53/189,713,158.65 = 85,274,221.14/x - Step 3: Cross multiply
137,468,368.53x = 189,713,158.65 × 85,274,221.14 - Step 4: Simplify right side
137,468,368.53x = 16,177,641,843,888,004 - Step 5: Solve for x
x = 16,177,641,843,888,004/137,468,368.53 - Step 6: Final answer
x = 117,682,649.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.