Finding the Fourth Proportional to 154,380,068.98, 213,047,542.24 and 84,764,840.92
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Solution
The fourth proportional to 154,380,068.98, 213,047,542.24 and 84,764,840.92 is: 116,977,153.50
Step by Step Solution
- Step 1: Write the proportion equation
154,380,068.98 : 213,047,542.24 = 84,764,840.92 : x - Step 2: Convert to fraction form
154,380,068.98/213,047,542.24 = 84,764,840.92/x - Step 3: Cross multiply
154,380,068.98x = 213,047,542.24 × 84,764,840.92 - Step 4: Simplify right side
154,380,068.98x = 18,058,941,026,370,580 - Step 5: Solve for x
x = 18,058,941,026,370,580/154,380,068.98 - Step 6: Final answer
x = 116,977,153.50
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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.