Finding the Fourth Proportional to 340,451,973.61, 469,809,207.42 and 189,736,609.63
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Solution
The fourth proportional to 340,451,973.61, 469,809,207.42 and 189,736,609.63 is: 261,828,431.31
Step by Step Solution
- Step 1: Write the proportion equation
340,451,973.61 : 469,809,207.42 = 189,736,609.63 : x - Step 2: Convert to fraction form
340,451,973.61/469,809,207.42 = 189,736,609.63/x - Step 3: Cross multiply
340,451,973.61x = 469,809,207.42 × 189,736,609.63 - Step 4: Simplify right side
340,451,973.61x = 89,140,006,186,479,200 - Step 5: Solve for x
x = 89,140,006,186,479,200/340,451,973.61 - Step 6: Final answer
x = 261,828,431.31
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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.