Finding the Fourth Proportional to 100,102,633.60, 149,860,017.60 and 74,656,451.20
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Solution
The fourth proportional to 100,102,633.60, 149,860,017.60 and 74,656,451.20 is: 111,765,461.99
Step by Step Solution
- Step 1: Write the proportion equation
100,102,633.60 : 149,860,017.60 = 74,656,451.20 : x - Step 2: Convert to fraction form
100,102,633.60/149,860,017.60 = 74,656,451.20/x - Step 3: Cross multiply
100,102,633.60x = 149,860,017.60 × 74,656,451.20 - Step 4: Simplify right side
100,102,633.60x = 11,188,017,090,785,542 - Step 5: Solve for x
x = 11,188,017,090,785,542/100,102,633.60 - Step 6: Final answer
x = 111,765,461.99
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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.