Finding the Fourth Proportional to 130,415,915.55, 195,623,873.33 and 84,499,413.15
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Solution
The fourth proportional to 130,415,915.55, 195,623,873.33 and 84,499,413.15 is: 126,749,119.73
Step by Step Solution
- Step 1: Write the proportion equation
130,415,915.55 : 195,623,873.33 = 84,499,413.15 : x - Step 2: Convert to fraction form
130,415,915.55/195,623,873.33 = 84,499,413.15/x - Step 3: Cross multiply
130,415,915.55x = 195,623,873.33 × 84,499,413.15 - Step 4: Simplify right side
130,415,915.55x = 16,530,102,494,092,440 - Step 5: Solve for x
x = 16,530,102,494,092,440/130,415,915.55 - Step 6: Final answer
x = 126,749,119.73
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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.