Finding the Fourth Proportional to 521,450,545.20, 782,280,793.80 and 152,984,785.20
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Solution
The fourth proportional to 521,450,545.20, 782,280,793.80 and 152,984,785.20 is: 229,507,975.99
Step by Step Solution
- Step 1: Write the proportion equation
521,450,545.20 : 782,280,793.80 = 152,984,785.20 : x - Step 2: Convert to fraction form
521,450,545.20/782,280,793.80 = 152,984,785.20/x - Step 3: Cross multiply
521,450,545.20x = 782,280,793.80 × 152,984,785.20 - Step 4: Simplify right side
521,450,545.20x = 119,677,059,205,578,480 - Step 5: Solve for x
x = 119,677,059,205,578,480/521,450,545.20 - Step 6: Final answer
x = 229,507,975.99
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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.