Finding the Fourth Proportional to 14,336,633.90, 19,784,520.15 and 7,810,316.99
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Solution
The fourth proportional to 14,336,633.90, 19,784,520.15 and 7,810,316.99 is: 10,778,218.57
Step by Step Solution
- Step 1: Write the proportion equation
14,336,633.90 : 19,784,520.15 = 7,810,316.99 : x - Step 2: Convert to fraction form
14,336,633.90/19,784,520.15 = 7,810,316.99/x - Step 3: Cross multiply
14,336,633.90x = 19,784,520.15 × 7,810,316.99 - Step 4: Simplify right side
14,336,633.90x = 154,523,373,812,523 - Step 5: Solve for x
x = 154,523,373,812,523/14,336,633.90 - Step 6: Final answer
x = 10,778,218.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.