Finding the Fourth Proportional to 130,479,527.40, 195,719,291.10 and 87,481,357.80
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Solution
The fourth proportional to 130,479,527.40, 195,719,291.10 and 87,481,357.80 is: 131,222,036.70
Step by Step Solution
- Step 1: Write the proportion equation
130,479,527.40 : 195,719,291.10 = 87,481,357.80 : x - Step 2: Convert to fraction form
130,479,527.40/195,719,291.10 = 87,481,357.80/x - Step 3: Cross multiply
130,479,527.40x = 195,719,291.10 × 87,481,357.80 - Step 4: Simplify right side
130,479,527.40x = 17,121,789,333,081,454 - Step 5: Solve for x
x = 17,121,789,333,081,454/130,479,527.40 - Step 6: Final answer
x = 131,222,036.70
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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.