Finding the Fourth Proportional to 177,643,137.40, 266,912,603.70 and 112,977,921.40
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Solution
The fourth proportional to 177,643,137.40, 266,912,603.70 and 112,977,921.40 is: 169,751,737.12
Step by Step Solution
- Step 1: Write the proportion equation
177,643,137.40 : 266,912,603.70 = 112,977,921.40 : x - Step 2: Convert to fraction form
177,643,137.40/266,912,603.70 = 112,977,921.40/x - Step 3: Cross multiply
177,643,137.40x = 266,912,603.70 × 112,977,921.40 - Step 4: Simplify right side
177,643,137.40x = 30,155,231,161,487,948 - Step 5: Solve for x
x = 30,155,231,161,487,948/177,643,137.40 - Step 6: Final answer
x = 169,751,737.12
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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.