Finding the Fourth Proportional to 890,368,957.65, 1,228,704,635.43 and 493,887,842.49
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Solution
The fourth proportional to 890,368,957.65, 1,228,704,635.43 and 493,887,842.49 is: 681,562,711.99
Step by Step Solution
- Step 1: Write the proportion equation
890,368,957.65 : 1,228,704,635.43 = 493,887,842.49 : x - Step 2: Convert to fraction form
890,368,957.65/1,228,704,635.43 = 493,887,842.49/x - Step 3: Cross multiply
890,368,957.65x = 1,228,704,635.43 × 493,887,842.49 - Step 4: Simplify right side
890,368,957.65x = 606,842,281,449,984,768 - Step 5: Solve for x
x = 606,842,281,449,984,768/890,368,957.65 - Step 6: Final answer
x = 681,562,711.99
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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.