Finding the Fourth Proportional to 255,649,067.80, 383,473,601.70 and 213,133,787.80
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Solution
The fourth proportional to 255,649,067.80, 383,473,601.70 and 213,133,787.80 is: 319,700,681.70
Step by Step Solution
- Step 1: Write the proportion equation
255,649,067.80 : 383,473,601.70 = 213,133,787.80 : x - Step 2: Convert to fraction form
255,649,067.80/383,473,601.70 = 213,133,787.80/x - Step 3: Cross multiply
255,649,067.80x = 383,473,601.70 × 213,133,787.80 - Step 4: Simplify right side
255,649,067.80x = 81,731,181,251,629,520 - Step 5: Solve for x
x = 81,731,181,251,629,520/255,649,067.80 - Step 6: Final answer
x = 319,700,681.70
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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.