Finding the Fourth Proportional to 71,269,826.95, 98,352,361.20 and 38,674,778.95
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Solution
The fourth proportional to 71,269,826.95, 98,352,361.20 and 38,674,778.95 is: 53,371,194.96
Step by Step Solution
- Step 1: Write the proportion equation
71,269,826.95 : 98,352,361.20 = 38,674,778.95 : x - Step 2: Convert to fraction form
71,269,826.95/98,352,361.20 = 38,674,778.95/x - Step 3: Cross multiply
71,269,826.95x = 98,352,361.20 × 38,674,778.95 - Step 4: Simplify right side
71,269,826.95x = 3,803,755,828,620,557 - Step 5: Solve for x
x = 3,803,755,828,620,557/71,269,826.95 - Step 6: Final answer
x = 53,371,194.96
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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.