Finding the Fourth Proportional to 10,783,905.84, 16,183,892.54 and 7,912,692.09
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Solution
The fourth proportional to 10,783,905.84, 16,183,892.54 and 7,912,692.09 is: 11,874,932.92
Step by Step Solution
- Step 1: Write the proportion equation
10,783,905.84 : 16,183,892.54 = 7,912,692.09 : x - Step 2: Convert to fraction form
10,783,905.84/16,183,892.54 = 7,912,692.09/x - Step 3: Cross multiply
10,783,905.84x = 16,183,892.54 × 7,912,692.09 - Step 4: Simplify right side
10,783,905.84x = 128,058,158,506,449.73 - Step 5: Solve for x
x = 128,058,158,506,449.73/10,783,905.84 - Step 6: Final answer
x = 11,874,932.92
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1.5x scale
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.