Finding the Fourth Proportional to 13,206,773.80, 19,810,160.70 and 3,623,121.10
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Solution
The fourth proportional to 13,206,773.80, 19,810,160.70 and 3,623,121.10 is: 5,434,681.65
Step by Step Solution
- Step 1: Write the proportion equation
13,206,773.80 : 19,810,160.70 = 3,623,121.10 : x - Step 2: Convert to fraction form
13,206,773.80/19,810,160.70 = 3,623,121.10/x - Step 3: Cross multiply
13,206,773.80x = 19,810,160.70 × 3,623,121.10 - Step 4: Simplify right side
13,206,773.80x = 71,774,611,226,560.77 - Step 5: Solve for x
x = 71,774,611,226,560.77/13,206,773.80 - Step 6: Final answer
x = 5,434,681.65
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Double scale
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Similar ratio
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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.