Finding the Fourth Proportional to 309,569,534.56, 427,193,149.36 and 168,441,335.84
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Solution
The fourth proportional to 309,569,534.56, 427,193,149.36 and 168,441,335.84 is: 232,442,074.26
Step by Step Solution
- Step 1: Write the proportion equation
309,569,534.56 : 427,193,149.36 = 168,441,335.84 : x - Step 2: Convert to fraction form
309,569,534.56/427,193,149.36 = 168,441,335.84/x - Step 3: Cross multiply
309,569,534.56x = 427,193,149.36 × 168,441,335.84 - Step 4: Simplify right side
309,569,534.56x = 71,956,984,739,895,048 - Step 5: Solve for x
x = 71,956,984,739,895,048/309,569,534.56 - Step 6: Final answer
x = 232,442,074.26
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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.