Finding the Fourth Proportional to 304,485,448.36, 420,190,324.20 and 165,256,210.12
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Solution
The fourth proportional to 304,485,448.36, 420,190,324.20 and 165,256,210.12 is: 228,053,790.03
Step by Step Solution
- Step 1: Write the proportion equation
304,485,448.36 : 420,190,324.20 = 165,256,210.12 : x - Step 2: Convert to fraction form
304,485,448.36/420,190,324.20 = 165,256,210.12/x - Step 3: Cross multiply
304,485,448.36x = 420,190,324.20 × 165,256,210.12 - Step 4: Simplify right side
304,485,448.36x = 69,439,060,506,386,120 - Step 5: Solve for x
x = 69,439,060,506,386,120/304,485,448.36 - Step 6: Final answer
x = 228,053,790.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.