Finding the Fourth Proportional to 230,945,445.09, 318,704,603.81 and 138,125,951.01
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Solution
The fourth proportional to 230,945,445.09, 318,704,603.81 and 138,125,951.01 is: 190,613,746.35
Step by Step Solution
- Step 1: Write the proportion equation
230,945,445.09 : 318,704,603.81 = 138,125,951.01 : x - Step 2: Convert to fraction form
230,945,445.09/318,704,603.81 = 138,125,951.01/x - Step 3: Cross multiply
230,945,445.09x = 318,704,603.81 × 138,125,951.01 - Step 4: Simplify right side
230,945,445.09x = 44,021,376,491,830,888 - Step 5: Solve for x
x = 44,021,376,491,830,888/230,945,445.09 - Step 6: Final answer
x = 190,613,746.35
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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.