Finding the Fourth Proportional to 217,121,473,708.20, 325,682,210,562.30 and 146,593,726,021.80
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Solution
The fourth proportional to 217,121,473,708.20, 325,682,210,562.30 and 146,593,726,021.80 is: 219,890,589,032.70
Step by Step Solution
- Step 1: Write the proportion equation
217,121,473,708.20 : 325,682,210,562.30 = 146,593,726,021.80 : x - Step 2: Convert to fraction form
217,121,473,708.20/325,682,210,562.30 = 146,593,726,021.80/x - Step 3: Cross multiply
217,121,473,708.20x = 325,682,210,562.30 × 146,593,726,021.80 - Step 4: Simplify right side
217,121,473,708.20x = 47,742,968,745,343,980,666,880 - Step 5: Solve for x
x = 47,742,968,745,343,980,666,880/217,121,473,708.20 - Step 6: Final answer
x = 219,890,589,032.70
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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.