Finding the Fourth Proportional to 118,573,059.20, 177,859,588.80 and 77,889,610.40
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Solution
The fourth proportional to 118,573,059.20, 177,859,588.80 and 77,889,610.40 is: 116,834,415.60
Step by Step Solution
- Step 1: Write the proportion equation
118,573,059.20 : 177,859,588.80 = 77,889,610.40 : x - Step 2: Convert to fraction form
118,573,059.20/177,859,588.80 = 77,889,610.40/x - Step 3: Cross multiply
118,573,059.20x = 177,859,588.80 × 77,889,610.40 - Step 4: Simplify right side
118,573,059.20x = 13,853,414,077,536,206 - Step 5: Solve for x
x = 13,853,414,077,536,206/118,573,059.20 - Step 6: Final answer
x = 116,834,415.60
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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.