Finding the Fourth Proportional to 230,531,946.72, 318,133,135.36 and 124,685,480.22
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Solution
The fourth proportional to 230,531,946.72, 318,133,135.36 and 124,685,480.22 is: 172,065,448.28
Step by Step Solution
- Step 1: Write the proportion equation
230,531,946.72 : 318,133,135.36 = 124,685,480.22 : x - Step 2: Convert to fraction form
230,531,946.72/318,133,135.36 = 124,685,480.22/x - Step 3: Cross multiply
230,531,946.72x = 318,133,135.36 × 124,685,480.22 - Step 4: Simplify right side
230,531,946.72x = 39,666,582,756,255,864 - Step 5: Solve for x
x = 39,666,582,756,255,864/230,531,946.72 - Step 6: Final answer
x = 172,065,448.28
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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.