Finding the Fourth Proportional to 4,578,122.56, 6,318,128.45 and 3,026,688.75
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Solution
The fourth proportional to 4,578,122.56, 6,318,128.45 and 3,026,688.75 is: 4,177,041.59
Step by Step Solution
- Step 1: Write the proportion equation
4,578,122.56 : 6,318,128.45 = 3,026,688.75 : x - Step 2: Convert to fraction form
4,578,122.56/6,318,128.45 = 3,026,688.75/x - Step 3: Cross multiply
4,578,122.56x = 6,318,128.45 × 3,026,688.75 - Step 4: Simplify right side
4,578,122.56x = 19,123,008,300,669.94 - Step 5: Solve for x
x = 19,123,008,300,669.94/4,578,122.56 - Step 6: Final answer
x = 4,177,041.59
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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.