Finding the Fourth Proportional to 90,365,864.40, 135,454,318.20 and 49,362,238.80
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Solution
The fourth proportional to 90,365,864.40, 135,454,318.20 and 49,362,238.80 is: 73,991,749.49
Step by Step Solution
- Step 1: Write the proportion equation
90,365,864.40 : 135,454,318.20 = 49,362,238.80 : x - Step 2: Convert to fraction form
90,365,864.40/135,454,318.20 = 49,362,238.80/x - Step 3: Cross multiply
90,365,864.40x = 135,454,318.20 × 49,362,238.80 - Step 4: Simplify right side
90,365,864.40x = 6,686,328,401,479,585 - Step 5: Solve for x
x = 6,686,328,401,479,585/90,365,864.40 - Step 6: Final answer
x = 73,991,749.49
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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.