Finding the Fourth Proportional to 145,961,570.70, 201,427,046.06 and 79,882,030.31
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Solution
The fourth proportional to 145,961,570.70, 201,427,046.06 and 79,882,030.31 is: 110,237,244.78
Step by Step Solution
- Step 1: Write the proportion equation
145,961,570.70 : 201,427,046.06 = 79,882,030.31 : x - Step 2: Convert to fraction form
145,961,570.70/201,427,046.06 = 79,882,030.31/x - Step 3: Cross multiply
145,961,570.70x = 201,427,046.06 × 79,882,030.31 - Step 4: Simplify right side
145,961,570.70x = 16,090,401,397,212,142 - Step 5: Solve for x
x = 16,090,401,397,212,142/145,961,570.70 - Step 6: Final answer
x = 110,237,244.78
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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.