Finding the Fourth Proportional to 614,191,135.28, 921,286,702.92 and 205,247,285.80
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Solution
The fourth proportional to 614,191,135.28, 921,286,702.92 and 205,247,285.80 is: 307,870,928.70
Step by Step Solution
- Step 1: Write the proportion equation
614,191,135.28 : 921,286,702.92 = 205,247,285.80 : x - Step 2: Convert to fraction form
614,191,135.28/921,286,702.92 = 205,247,285.80/x - Step 3: Cross multiply
614,191,135.28x = 921,286,702.92 × 205,247,285.80 - Step 4: Simplify right side
614,191,135.28x = 189,091,595,217,960,928 - Step 5: Solve for x
x = 189,091,595,217,960,928/614,191,135.28 - Step 6: Final answer
x = 307,870,928.70
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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.