Finding the Fourth Proportional to 489,894,847.20, 734,842,270.80 and 489,894,847.20
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Solution
The fourth proportional to 489,894,847.20, 734,842,270.80 and 489,894,847.20 is: 734,842,270.80
Step by Step Solution
- Step 1: Write the proportion equation
489,894,847.20 : 734,842,270.80 = 489,894,847.20 : x - Step 2: Convert to fraction form
489,894,847.20/734,842,270.80 = 489,894,847.20/x - Step 3: Cross multiply
489,894,847.20x = 734,842,270.80 × 489,894,847.20 - Step 4: Simplify right side
489,894,847.20x = 359,995,441,969,667,008 - Step 5: Solve for x
x = 359,995,441,969,667,008/489,894,847.20 - Step 6: Final answer
x = 734,842,270.80
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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.