Finding the Fourth Proportional to 72,504,449.75, 100,058,267.40 and 39,466,854.09
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Solution
The fourth proportional to 72,504,449.75, 100,058,267.40 and 39,466,854.09 is: 54,465,416.31
Step by Step Solution
- Step 1: Write the proportion equation
72,504,449.75 : 100,058,267.40 = 39,466,854.09 : x - Step 2: Convert to fraction form
72,504,449.75/100,058,267.40 = 39,466,854.09/x - Step 3: Cross multiply
72,504,449.75x = 100,058,267.40 × 39,466,854.09 - Step 4: Simplify right side
72,504,449.75x = 3,948,985,039,974,004.50 - Step 5: Solve for x
x = 3,948,985,039,974,004.50/72,504,449.75 - Step 6: Final answer
x = 54,465,416.31
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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.