Finding the Fourth Proportional to 314,928,690.80, 472,393,036.20 and 293,405,330.30
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Solution
The fourth proportional to 314,928,690.80, 472,393,036.20 and 293,405,330.30 is: 440,107,995.45
Step by Step Solution
- Step 1: Write the proportion equation
314,928,690.80 : 472,393,036.20 = 293,405,330.30 : x - Step 2: Convert to fraction form
314,928,690.80/472,393,036.20 = 293,405,330.30/x - Step 3: Cross multiply
314,928,690.80x = 472,393,036.20 × 293,405,330.30 - Step 4: Simplify right side
314,928,690.80x = 138,602,634,817,680,864 - Step 5: Solve for x
x = 138,602,634,817,680,864/314,928,690.80 - Step 6: Final answer
x = 440,107,995.45
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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.