Finding the Fourth Proportional to 419,905,497.80, 629,858,246.70 and 410,947,545.80
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Solution
The fourth proportional to 419,905,497.80, 629,858,246.70 and 410,947,545.80 is: 616,421,318.70
Step by Step Solution
- Step 1: Write the proportion equation
419,905,497.80 : 629,858,246.70 = 410,947,545.80 : x - Step 2: Convert to fraction form
419,905,497.80/629,858,246.70 = 410,947,545.80/x - Step 3: Cross multiply
419,905,497.80x = 629,858,246.70 × 410,947,545.80 - Step 4: Simplify right side
419,905,497.80x = 258,838,700,683,255,968 - Step 5: Solve for x
x = 258,838,700,683,255,968/419,905,497.80 - Step 6: Final answer
x = 616,421,318.70
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1.5x scale
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.