Finding the Fourth Proportional to 438,585,125.54, 657,412,464.80 and 205,219,220.18
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Solution
The fourth proportional to 438,585,125.54, 657,412,464.80 and 205,219,220.18 is: 307,611,146.63
Step by Step Solution
- Step 1: Write the proportion equation
438,585,125.54 : 657,412,464.80 = 205,219,220.18 : x - Step 2: Convert to fraction form
438,585,125.54/657,412,464.80 = 205,219,220.18/x - Step 3: Cross multiply
438,585,125.54x = 657,412,464.80 × 205,219,220.18 - Step 4: Simplify right side
438,585,125.54x = 134,913,673,362,867,696 - Step 5: Solve for x
x = 134,913,673,362,867,696/438,585,125.54 - Step 6: Final answer
x = 307,611,146.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.