Finding the Fourth Proportional to 129,945,420.57, 194,916,294.14 and 31,577,850.26
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Solution
The fourth proportional to 129,945,420.57, 194,916,294.14 and 31,577,850.26 is: 47,366,329.04
Step by Step Solution
- Step 1: Write the proportion equation
129,945,420.57 : 194,916,294.14 = 31,577,850.26 : x - Step 2: Convert to fraction form
129,945,420.57/194,916,294.14 = 31,577,850.26/x - Step 3: Cross multiply
129,945,420.57x = 194,916,294.14 × 31,577,850.26 - Step 4: Simplify right side
129,945,420.57x = 6,155,037,548,454,564 - Step 5: Solve for x
x = 6,155,037,548,454,564/129,945,420.57 - Step 6: Final answer
x = 47,366,329.04
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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.