Finding the Fourth Proportional to 124,871,318.20, 187,306,977.30 and 122,958,130.60
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Solution
The fourth proportional to 124,871,318.20, 187,306,977.30 and 122,958,130.60 is: 184,437,195.90
Step by Step Solution
- Step 1: Write the proportion equation
124,871,318.20 : 187,306,977.30 = 122,958,130.60 : x - Step 2: Convert to fraction form
124,871,318.20/187,306,977.30 = 122,958,130.60/x - Step 3: Cross multiply
124,871,318.20x = 187,306,977.30 × 122,958,130.60 - Step 4: Simplify right side
124,871,318.20x = 23,030,915,777,144,636 - Step 5: Solve for x
x = 23,030,915,777,144,636/124,871,318.20 - Step 6: Final answer
x = 184,437,195.90
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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.