Finding the Fourth Proportional to 128,569,754.54, 177,427,563.29 and 69,833,566.62
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Solution
The fourth proportional to 128,569,754.54, 177,427,563.29 and 69,833,566.62 is: 96,371,029.14
Step by Step Solution
- Step 1: Write the proportion equation
128,569,754.54 : 177,427,563.29 = 69,833,566.62 : x - Step 2: Convert to fraction form
128,569,754.54/177,427,563.29 = 69,833,566.62/x - Step 3: Cross multiply
128,569,754.54x = 177,427,563.29 × 69,833,566.62 - Step 4: Simplify right side
128,569,754.54x = 12,390,399,560,887,314 - Step 5: Solve for x
x = 12,390,399,560,887,314/128,569,754.54 - Step 6: Final answer
x = 96,371,029.14
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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.