Finding the Fourth Proportional to 19,933,309.80, 29,899,964.70 and 10,839,763.80
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Solution
The fourth proportional to 19,933,309.80, 29,899,964.70 and 10,839,763.80 is: 16,259,645.70
Step by Step Solution
- Step 1: Write the proportion equation
19,933,309.80 : 29,899,964.70 = 10,839,763.80 : x - Step 2: Convert to fraction form
19,933,309.80/29,899,964.70 = 10,839,763.80/x - Step 3: Cross multiply
19,933,309.80x = 29,899,964.70 × 10,839,763.80 - Step 4: Simplify right side
19,933,309.80x = 324,108,554,976,337.88 - Step 5: Solve for x
x = 324,108,554,976,337.88/19,933,309.80 - Step 6: Final answer
x = 16,259,645.70
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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.