Finding the Fourth Proportional to 22,855,651.58, 31,539,246.45 and 12,543,038.96
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Solution
The fourth proportional to 22,855,651.58, 31,539,246.45 and 12,543,038.96 is: 17,308,541.64
Step by Step Solution
- Step 1: Write the proportion equation
22,855,651.58 : 31,539,246.45 = 12,543,038.96 : x - Step 2: Convert to fraction form
22,855,651.58/31,539,246.45 = 12,543,038.96/x - Step 3: Cross multiply
22,855,651.58x = 31,539,246.45 × 12,543,038.96 - Step 4: Simplify right side
22,855,651.58x = 395,597,996,991,391.69 - Step 5: Solve for x
x = 395,597,996,991,391.69/22,855,651.58 - Step 6: Final answer
x = 17,308,541.64
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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.