Finding the Fourth Proportional to 10,894,517.80, 16,341,776.70 and 6,642,989.80
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Solution
The fourth proportional to 10,894,517.80, 16,341,776.70 and 6,642,989.80 is: 9,964,484.70
Step by Step Solution
- Step 1: Write the proportion equation
10,894,517.80 : 16,341,776.70 = 6,642,989.80 : x - Step 2: Convert to fraction form
10,894,517.80/16,341,776.70 = 6,642,989.80/x - Step 3: Cross multiply
10,894,517.80x = 16,341,776.70 × 6,642,989.80 - Step 4: Simplify right side
10,894,517.80x = 108,558,255,931,977.66 - Step 5: Solve for x
x = 108,558,255,931,977.66/10,894,517.80 - Step 6: Final answer
x = 9,964,484.70
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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.