Finding the Fourth Proportional to 457,340,952.66, 686,010,071.35 and 129,816,742.96
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Solution
The fourth proportional to 457,340,952.66, 686,010,071.35 and 129,816,742.96 is: 194,724,729.07
Step by Step Solution
- Step 1: Write the proportion equation
457,340,952.66 : 686,010,071.35 = 129,816,742.96 : x - Step 2: Convert to fraction form
457,340,952.66/686,010,071.35 = 129,816,742.96/x - Step 3: Cross multiply
457,340,952.66x = 686,010,071.35 × 129,816,742.96 - Step 4: Simplify right side
457,340,952.66x = 89,055,593,100,414,208 - Step 5: Solve for x
x = 89,055,593,100,414,208/457,340,952.66 - Step 6: Final answer
x = 194,724,729.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.