Finding the Fourth Proportional to 839,376,045.20, 1,259,064,067.80 and 664,024,134.80
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Solution
The fourth proportional to 839,376,045.20, 1,259,064,067.80 and 664,024,134.80 is: 996,036,202.20
Step by Step Solution
- Step 1: Write the proportion equation
839,376,045.20 : 1,259,064,067.80 = 664,024,134.80 : x - Step 2: Convert to fraction form
839,376,045.20/1,259,064,067.80 = 664,024,134.80/x - Step 3: Cross multiply
839,376,045.20x = 1,259,064,067.80 × 664,024,134.80 - Step 4: Simplify right side
839,376,045.20x = 836,048,928,278,663,424 - Step 5: Solve for x
x = 836,048,928,278,663,424/839,376,045.20 - Step 6: Final answer
x = 996,036,202.20
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Double scale
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Similar ratio
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1.5x scale
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.