Finding the Fourth Proportional to 68,534,573.18, 94,576,828.64 and 39,165,569.42
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Solution
The fourth proportional to 68,534,573.18, 94,576,828.64 and 39,165,569.42 is: 54,047,981.56
Step by Step Solution
- Step 1: Write the proportion equation
68,534,573.18 : 94,576,828.64 = 39,165,569.42 : x - Step 2: Convert to fraction form
68,534,573.18/94,576,828.64 = 39,165,569.42/x - Step 3: Cross multiply
68,534,573.18x = 94,576,828.64 × 39,165,569.42 - Step 4: Simplify right side
68,534,573.18x = 3,704,155,347,623,364.50 - Step 5: Solve for x
x = 3,704,155,347,623,364.50/68,534,573.18 - Step 6: Final answer
x = 54,047,981.56
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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.