Finding the Fourth Proportional to 100,537,421, 138,743,478.46 and 55,887,585.26
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Solution
The fourth proportional to 100,537,421, 138,743,478.46 and 55,887,585.26 is: 77,125,889.09
Step by Step Solution
- Step 1: Write the proportion equation
100,537,421 : 138,743,478.46 = 55,887,585.26 : x - Step 2: Convert to fraction form
100,537,421/138,743,478.46 = 55,887,585.26/x - Step 3: Cross multiply
100,537,421x = 138,743,478.46 × 55,887,585.26 - Step 4: Simplify right side
100,537,421x = 7,754,037,981,702,224 - Step 5: Solve for x
x = 7,754,037,981,702,224/100,537,421 - Step 6: Final answer
x = 77,125,889.09
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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.