Finding the Fourth Proportional to 66,203,887.70, 99,246,733.95 and 25,804,975.70
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Solution
The fourth proportional to 66,203,887.70, 99,246,733.95 and 25,804,975.70 is: 38,684,428.47
Step by Step Solution
- Step 1: Write the proportion equation
66,203,887.70 : 99,246,733.95 = 25,804,975.70 : x - Step 2: Convert to fraction form
66,203,887.70/99,246,733.95 = 25,804,975.70/x - Step 3: Cross multiply
66,203,887.70x = 99,246,733.95 × 25,804,975.70 - Step 4: Simplify right side
66,203,887.70x = 2,561,059,557,884,115 - Step 5: Solve for x
x = 2,561,059,557,884,115/66,203,887.70 - Step 6: Final answer
x = 38,684,428.47
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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.