Finding the Fourth Proportional to 78,801,841.70, 118,202,762.55 and 74,337,737.30
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Solution
The fourth proportional to 78,801,841.70, 118,202,762.55 and 74,337,737.30 is: 111,506,605.95
Step by Step Solution
- Step 1: Write the proportion equation
78,801,841.70 : 118,202,762.55 = 74,337,737.30 : x - Step 2: Convert to fraction form
78,801,841.70/118,202,762.55 = 74,337,737.30/x - Step 3: Cross multiply
78,801,841.70x = 118,202,762.55 × 74,337,737.30 - Step 4: Simplify right side
78,801,841.70x = 8,786,925,910,576,178 - Step 5: Solve for x
x = 8,786,925,910,576,178/78,801,841.70 - Step 6: Final answer
x = 111,506,605.95
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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.