Finding the Fourth Proportional to 425,894,920.80, 587,736,762.24 and 230,324,632.80
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Solution
The fourth proportional to 425,894,920.80, 587,736,762.24 and 230,324,632.80 is: 317,848,951.31
Step by Step Solution
- Step 1: Write the proportion equation
425,894,920.80 : 587,736,762.24 = 230,324,632.80 : x - Step 2: Convert to fraction form
425,894,920.80/587,736,762.24 = 230,324,632.80/x - Step 3: Cross multiply
425,894,920.80x = 587,736,762.24 × 230,324,632.80 - Step 4: Simplify right side
425,894,920.80x = 135,370,253,945,988,912 - Step 5: Solve for x
x = 135,370,253,945,988,912/425,894,920.80 - Step 6: Final answer
x = 317,848,951.31
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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.