Finding the Fourth Proportional to 330,221,855.70, 495,332,783.55 and 84,578,015.70
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Solution
The fourth proportional to 330,221,855.70, 495,332,783.55 and 84,578,015.70 is: 126,867,023.55
Step by Step Solution
- Step 1: Write the proportion equation
330,221,855.70 : 495,332,783.55 = 84,578,015.70 : x - Step 2: Convert to fraction form
330,221,855.70/495,332,783.55 = 84,578,015.70/x - Step 3: Cross multiply
330,221,855.70x = 495,332,783.55 × 84,578,015.70 - Step 4: Simplify right side
330,221,855.70x = 41,894,263,943,816,608 - Step 5: Solve for x
x = 41,894,263,943,816,608/330,221,855.70 - Step 6: Final answer
x = 126,867,023.55
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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.