Finding the Fourth Proportional to 212,947,415.54, 293,868,318.75 and 115,162,271.54
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Solution
The fourth proportional to 212,947,415.54, 293,868,318.75 and 115,162,271.54 is: 158,924,413.50
Step by Step Solution
- Step 1: Write the proportion equation
212,947,415.54 : 293,868,318.75 = 115,162,271.54 : x - Step 2: Convert to fraction form
212,947,415.54/293,868,318.75 = 115,162,271.54/x - Step 3: Cross multiply
212,947,415.54x = 293,868,318.75 × 115,162,271.54 - Step 4: Simplify right side
212,947,415.54x = 33,842,543,120,890,776 - Step 5: Solve for x
x = 33,842,543,120,890,776/212,947,415.54 - Step 6: Final answer
x = 158,924,413.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.