Finding the Fourth Proportional to 99,274,553.80, 148,911,830.70 and 73,765,385.80
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Solution
The fourth proportional to 99,274,553.80, 148,911,830.70 and 73,765,385.80 is: 110,648,078.70
Step by Step Solution
- Step 1: Write the proportion equation
99,274,553.80 : 148,911,830.70 = 73,765,385.80 : x - Step 2: Convert to fraction form
99,274,553.80/148,911,830.70 = 73,765,385.80/x - Step 3: Cross multiply
99,274,553.80x = 148,911,830.70 × 73,765,385.80 - Step 4: Simplify right side
99,274,553.80x = 10,984,538,641,769,782 - Step 5: Solve for x
x = 10,984,538,641,769,782/99,274,553.80 - Step 6: Final answer
x = 110,648,078.70
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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.