Finding the Fourth Proportional to 213,586,276.80, 320,360,752.80 and 69,979,108.80
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Solution
The fourth proportional to 213,586,276.80, 320,360,752.80 and 69,979,108.80 is: 104,962,548.68
Step by Step Solution
- Step 1: Write the proportion equation
213,586,276.80 : 320,360,752.80 = 69,979,108.80 : x - Step 2: Convert to fraction form
213,586,276.80/320,360,752.80 = 69,979,108.80/x - Step 3: Cross multiply
213,586,276.80x = 320,360,752.80 × 69,979,108.80 - Step 4: Simplify right side
213,586,276.80x = 22,418,559,975,441,104 - Step 5: Solve for x
x = 22,418,559,975,441,104/213,586,276.80 - Step 6: Final answer
x = 104,962,548.68
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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.