Finding the Fourth Proportional to 9,991,805.70, 14,984,209.35 and 5,197,901.70
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Solution
The fourth proportional to 9,991,805.70, 14,984,209.35 and 5,197,901.70 is: 7,795,032.21
Step by Step Solution
- Step 1: Write the proportion equation
9,991,805.70 : 14,984,209.35 = 5,197,901.70 : x - Step 2: Convert to fraction form
9,991,805.70/14,984,209.35 = 5,197,901.70/x - Step 3: Cross multiply
9,991,805.70x = 14,984,209.35 × 5,197,901.70 - Step 4: Simplify right side
9,991,805.70x = 77,886,447,253,520.89 - Step 5: Solve for x
x = 77,886,447,253,520.89/9,991,805.70 - Step 6: Final answer
x = 7,795,032.21
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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.