Finding the Fourth Proportional to 10,368,931.10, 15,553,396.65 and 8,227,420.70
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Solution
The fourth proportional to 10,368,931.10, 15,553,396.65 and 8,227,420.70 is: 12,341,131.05
Step by Step Solution
- Step 1: Write the proportion equation
10,368,931.10 : 15,553,396.65 = 8,227,420.70 : x - Step 2: Convert to fraction form
10,368,931.10/15,553,396.65 = 8,227,420.70/x - Step 3: Cross multiply
10,368,931.10x = 15,553,396.65 × 8,227,420.70 - Step 4: Simplify right side
10,368,931.10x = 127,964,337,553,520.66 - Step 5: Solve for x
x = 127,964,337,553,520.66/10,368,931.10 - Step 6: Final answer
x = 12,341,131.05
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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.