Finding the Fourth Proportional to 430,551,145.36, 646,077,371.68 and 181,540,783.92
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Solution
The fourth proportional to 430,551,145.36, 646,077,371.68 and 181,540,783.92 is: 272,416,863.34
Step by Step Solution
- Step 1: Write the proportion equation
430,551,145.36 : 646,077,371.68 = 181,540,783.92 : x - Step 2: Convert to fraction form
430,551,145.36/646,077,371.68 = 181,540,783.92/x - Step 3: Cross multiply
430,551,145.36x = 646,077,371.68 × 181,540,783.92 - Step 4: Simplify right side
430,551,145.36x = 117,289,392,527,760,384 - Step 5: Solve for x
x = 117,289,392,527,760,384/430,551,145.36 - Step 6: Final answer
x = 272,416,863.34
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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.