Finding the Fourth Proportional to 137,276,351.57, 189,395,274.82 and 77,729,511.09
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Solution
The fourth proportional to 137,276,351.57, 189,395,274.82 and 77,729,511.09 is: 107,240,627.73
Step by Step Solution
- Step 1: Write the proportion equation
137,276,351.57 : 189,395,274.82 = 77,729,511.09 : x - Step 2: Convert to fraction form
137,276,351.57/189,395,274.82 = 77,729,511.09/x - Step 3: Cross multiply
137,276,351.57x = 189,395,274.82 × 77,729,511.09 - Step 4: Simplify right side
137,276,351.57x = 14,721,602,115,176,826 - Step 5: Solve for x
x = 14,721,602,115,176,826/137,276,351.57 - Step 6: Final answer
x = 107,240,627.73
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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.