Finding the Fourth Proportional to 129,025,603.20, 193,538,404.80 and 97,175,107.20
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Solution
The fourth proportional to 129,025,603.20, 193,538,404.80 and 97,175,107.20 is: 145,762,660.80
Step by Step Solution
- Step 1: Write the proportion equation
129,025,603.20 : 193,538,404.80 = 97,175,107.20 : x - Step 2: Convert to fraction form
129,025,603.20/193,538,404.80 = 97,175,107.20/x - Step 3: Cross multiply
129,025,603.20x = 193,538,404.80 × 97,175,107.20 - Step 4: Simplify right side
129,025,603.20x = 18,807,115,233,756,996 - Step 5: Solve for x
x = 18,807,115,233,756,996/129,025,603.20 - Step 6: Final answer
x = 145,762,660.80
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1.5x scale
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.