Finding the Fourth Proportional to 8,159,167.20, 12,238,750.80 and 7,277,368.80
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Solution
The fourth proportional to 8,159,167.20, 12,238,750.80 and 7,277,368.80 is: 10,916,053.20
Step by Step Solution
- Step 1: Write the proportion equation
8,159,167.20 : 12,238,750.80 = 7,277,368.80 : x - Step 2: Convert to fraction form
8,159,167.20/12,238,750.80 = 7,277,368.80/x - Step 3: Cross multiply
8,159,167.20x = 12,238,750.80 × 7,277,368.80 - Step 4: Simplify right side
8,159,167.20x = 89,065,903,222,895.05 - Step 5: Solve for x
x = 89,065,903,222,895.05/8,159,167.20 - Step 6: Final answer
x = 10,916,053.20
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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.