Finding the Fourth Proportional to 10,787,457.80, 16,181,186.70 and 9,611,726.60
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Solution
The fourth proportional to 10,787,457.80, 16,181,186.70 and 9,611,726.60 is: 14,417,589.90
Step by Step Solution
- Step 1: Write the proportion equation
10,787,457.80 : 16,181,186.70 = 9,611,726.60 : x - Step 2: Convert to fraction form
10,787,457.80/16,181,186.70 = 9,611,726.60/x - Step 3: Cross multiply
10,787,457.80x = 16,181,186.70 × 9,611,726.60 - Step 4: Simplify right side
10,787,457.80x = 155,529,142,623,956.22 - Step 5: Solve for x
x = 155,529,142,623,956.22/10,787,457.80 - Step 6: Final answer
x = 14,417,589.90
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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.