Finding the Fourth Proportional to 230,531,944.71, 318,133,132.60 and 124,685,478.21
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Solution
The fourth proportional to 230,531,944.71, 318,133,132.60 and 124,685,478.21 is: 172,065,445.52
Step by Step Solution
- Step 1: Write the proportion equation
230,531,944.71 : 318,133,132.60 = 124,685,478.21 : x - Step 2: Convert to fraction form
230,531,944.71/318,133,132.60 = 124,685,478.21/x - Step 3: Cross multiply
230,531,944.71x = 318,133,132.60 × 124,685,478.21 - Step 4: Simplify right side
230,531,944.71x = 39,666,581,772,676,344 - Step 5: Solve for x
x = 39,666,581,772,676,344/230,531,944.71 - Step 6: Final answer
x = 172,065,445.52
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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.