Finding the Fourth Proportional to 54,069,491.24, 81,104,236.87 and 13,128,654.63
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Solution
The fourth proportional to 54,069,491.24, 81,104,236.87 and 13,128,654.63 is: 19,692,981.95
Step by Step Solution
- Step 1: Write the proportion equation
54,069,491.24 : 81,104,236.87 = 13,128,654.63 : x - Step 2: Convert to fraction form
54,069,491.24/81,104,236.87 = 13,128,654.63/x - Step 3: Cross multiply
54,069,491.24x = 81,104,236.87 × 13,128,654.63 - Step 4: Simplify right side
54,069,491.24x = 1,064,789,514,895,942.38 - Step 5: Solve for x
x = 1,064,789,514,895,942.38/54,069,491.24 - Step 6: Final answer
x = 19,692,981.95
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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.