Finding the Fourth Proportional to 168,335,621.91, 232,463,586.78 and 159,164,775.05
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Solution
The fourth proportional to 168,335,621.91, 232,463,586.78 and 159,164,775.05 is: 219,799,078.03
Step by Step Solution
- Step 1: Write the proportion equation
168,335,621.91 : 232,463,586.78 = 159,164,775.05 : x - Step 2: Convert to fraction form
168,335,621.91/232,463,586.78 = 159,164,775.05/x - Step 3: Cross multiply
168,335,621.91x = 232,463,586.78 × 159,164,775.05 - Step 4: Simplify right side
168,335,621.91x = 37,000,014,495,992,536 - Step 5: Solve for x
x = 37,000,014,495,992,536/168,335,621.91 - Step 6: Final answer
x = 219,799,078.03
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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.