Finding the Fourth Proportional to 103,490,766.40, 155,236,149.60 and 97,113,474.40
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Solution
The fourth proportional to 103,490,766.40, 155,236,149.60 and 97,113,474.40 is: 145,670,211.60
Step by Step Solution
- Step 1: Write the proportion equation
103,490,766.40 : 155,236,149.60 = 97,113,474.40 : x - Step 2: Convert to fraction form
103,490,766.40/155,236,149.60 = 97,113,474.40/x - Step 3: Cross multiply
103,490,766.40x = 155,236,149.60 × 97,113,474.40 - Step 4: Simplify right side
103,490,766.40x = 15,075,521,840,134,170 - Step 5: Solve for x
x = 15,075,521,840,134,170/103,490,766.40 - Step 6: Final answer
x = 145,670,211.60
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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.