Finding the Fourth Proportional to 478,327,823.10, 660,092,391.99 and 258,311,229.66
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Solution
The fourth proportional to 478,327,823.10, 660,092,391.99 and 258,311,229.66 is: 356,469,494.83
Step by Step Solution
- Step 1: Write the proportion equation
478,327,823.10 : 660,092,391.99 = 258,311,229.66 : x - Step 2: Convert to fraction form
478,327,823.10/660,092,391.99 = 258,311,229.66/x - Step 3: Cross multiply
478,327,823.10x = 660,092,391.99 × 258,311,229.66 - Step 4: Simplify right side
478,327,823.10x = 170,509,277,464,147,648 - Step 5: Solve for x
x = 170,509,277,464,147,648/478,327,823.10 - Step 6: Final answer
x = 356,469,494.83
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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.