Finding the Fourth Proportional to 197,564,927.20, 296,347,390.80 and 193,785,791.20
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Solution
The fourth proportional to 197,564,927.20, 296,347,390.80 and 193,785,791.20 is: 290,678,686.80
Step by Step Solution
- Step 1: Write the proportion equation
197,564,927.20 : 296,347,390.80 = 193,785,791.20 : x - Step 2: Convert to fraction form
197,564,927.20/296,347,390.80 = 193,785,791.20/x - Step 3: Cross multiply
197,564,927.20x = 296,347,390.80 × 193,785,791.20 - Step 4: Simplify right side
197,564,927.20x = 57,427,913,596,233,600 - Step 5: Solve for x
x = 57,427,913,596,233,600/197,564,927.20 - Step 6: Final answer
x = 290,678,686.80
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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.