Finding the Fourth Proportional to 31,542,811.43, 47,317,539.56 and 13,096,661.99
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Solution
The fourth proportional to 31,542,811.43, 47,317,539.56 and 13,096,661.99 is: 19,646,372.45
Step by Step Solution
- Step 1: Write the proportion equation
31,542,811.43 : 47,317,539.56 = 13,096,661.99 : x - Step 2: Convert to fraction form
31,542,811.43/47,317,539.56 = 13,096,661.99/x - Step 3: Cross multiply
31,542,811.43x = 47,317,539.56 × 13,096,661.99 - Step 4: Simplify right side
31,542,811.43x = 619,701,821,513,702.25 - Step 5: Solve for x
x = 619,701,821,513,702.25/31,542,811.43 - Step 6: Final answer
x = 19,646,372.45
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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.