Finding the Fourth Proportional to 5,258,173.12, 7,886,470.31 and 1,663,472.99
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Solution
The fourth proportional to 5,258,173.12, 7,886,470.31 and 1,663,472.99 is: 2,494,959.75
Step by Step Solution
- Step 1: Write the proportion equation
5,258,173.12 : 7,886,470.31 = 1,663,472.99 : x - Step 2: Convert to fraction form
5,258,173.12/7,886,470.31 = 1,663,472.99/x - Step 3: Cross multiply
5,258,173.12x = 7,886,470.31 × 1,663,472.99 - Step 4: Simplify right side
5,258,173.12x = 13,118,930,299,372.21 - Step 5: Solve for x
x = 13,118,930,299,372.21/5,258,173.12 - Step 6: Final answer
x = 2,494,959.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.