Finding the Fourth Proportional to 81,046,899.80, 121,570,349.70 and 24,313,203.80
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Solution
The fourth proportional to 81,046,899.80, 121,570,349.70 and 24,313,203.80 is: 36,469,805.70
Step by Step Solution
- Step 1: Write the proportion equation
81,046,899.80 : 121,570,349.70 = 24,313,203.80 : x - Step 2: Convert to fraction form
81,046,899.80/121,570,349.70 = 24,313,203.80/x - Step 3: Cross multiply
81,046,899.80x = 121,570,349.70 × 24,313,203.80 - Step 4: Simplify right side
81,046,899.80x = 2,955,764,688,293,369 - Step 5: Solve for x
x = 2,955,764,688,293,369/81,046,899.80 - Step 6: Final answer
x = 36,469,805.70
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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.