Finding the Fourth Proportional to 175,987,415.20, 263,981,122.80 and 130,637,783.20
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Solution
The fourth proportional to 175,987,415.20, 263,981,122.80 and 130,637,783.20 is: 195,956,674.80
Step by Step Solution
- Step 1: Write the proportion equation
175,987,415.20 : 263,981,122.80 = 130,637,783.20 : x - Step 2: Convert to fraction form
175,987,415.20/263,981,122.80 = 130,637,783.20/x - Step 3: Cross multiply
175,987,415.20x = 263,981,122.80 × 130,637,783.20 - Step 4: Simplify right side
175,987,415.20x = 34,485,908,689,238,980 - Step 5: Solve for x
x = 34,485,908,689,238,980/175,987,415.20 - Step 6: Final answer
x = 195,956,674.80
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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.