Finding the Fourth Proportional to 659,126,838.10, 988,690,257.15 and 368,889,193.30
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Solution
The fourth proportional to 659,126,838.10, 988,690,257.15 and 368,889,193.30 is: 553,333,789.95
Step by Step Solution
- Step 1: Write the proportion equation
659,126,838.10 : 988,690,257.15 = 368,889,193.30 : x - Step 2: Convert to fraction form
659,126,838.10/988,690,257.15 = 368,889,193.30/x - Step 3: Cross multiply
659,126,838.10x = 988,690,257.15 × 368,889,193.30 - Step 4: Simplify right side
659,126,838.10x = 364,717,151,383,633,088 - Step 5: Solve for x
x = 364,717,151,383,633,088/659,126,838.10 - Step 6: Final answer
x = 553,333,789.95
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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.