Finding the Fourth Proportional to 5,438,428.61, 8,150,294.37 and 2,070,798.53
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Solution
The fourth proportional to 5,438,428.61, 8,150,294.37 and 2,070,798.53 is: 3,103,399.68
Step by Step Solution
- Step 1: Write the proportion equation
5,438,428.61 : 8,150,294.37 = 2,070,798.53 : x - Step 2: Convert to fraction form
5,438,428.61/8,150,294.37 = 2,070,798.53/x - Step 3: Cross multiply
5,438,428.61x = 8,150,294.37 × 2,070,798.53 - Step 4: Simplify right side
5,438,428.61x = 16,877,617,600,463.28 - Step 5: Solve for x
x = 16,877,617,600,463.28/5,438,428.61 - Step 6: Final answer
x = 3,103,399.68
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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.