Finding the Fourth Proportional to 340,086,381.96, 469,304,110.65 and 189,386,811.84
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Solution
The fourth proportional to 340,086,381.96, 469,304,110.65 and 189,386,811.84 is: 261,345,393.45
Step by Step Solution
- Step 1: Write the proportion equation
340,086,381.96 : 469,304,110.65 = 189,386,811.84 : x - Step 2: Convert to fraction form
340,086,381.96/469,304,110.65 = 189,386,811.84/x - Step 3: Cross multiply
340,086,381.96x = 469,304,110.65 × 189,386,811.84 - Step 4: Simplify right side
340,086,381.96x = 88,880,009,299,410,080 - Step 5: Solve for x
x = 88,880,009,299,410,080/340,086,381.96 - Step 6: Final answer
x = 261,345,393.45
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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.