Finding the Fourth Proportional to 137,652,047.99, 189,963,741.96 and 74,932,190.70
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Solution
The fourth proportional to 137,652,047.99, 189,963,741.96 and 74,932,190.70 is: 103,408,554.73
Step by Step Solution
- Step 1: Write the proportion equation
137,652,047.99 : 189,963,741.96 = 74,932,190.70 : x - Step 2: Convert to fraction form
137,652,047.99/189,963,741.96 = 74,932,190.70/x - Step 3: Cross multiply
137,652,047.99x = 189,963,741.96 × 74,932,190.70 - Step 4: Simplify right side
137,652,047.99x = 14,234,399,338,243,568 - Step 5: Solve for x
x = 14,234,399,338,243,568/137,652,047.99 - Step 6: Final answer
x = 103,408,554.73
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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.