Finding the Fourth Proportional to 330,088,681.80, 495,133,022.70 and 215,297,425.80
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Solution
The fourth proportional to 330,088,681.80, 495,133,022.70 and 215,297,425.80 is: 322,946,138.70
Step by Step Solution
- Step 1: Write the proportion equation
330,088,681.80 : 495,133,022.70 = 215,297,425.80 : x - Step 2: Convert to fraction form
330,088,681.80/495,133,022.70 = 215,297,425.80/x - Step 3: Cross multiply
330,088,681.80x = 495,133,022.70 × 215,297,425.80 - Step 4: Simplify right side
330,088,681.80x = 106,600,865,215,882,976 - Step 5: Solve for x
x = 106,600,865,215,882,976/330,088,681.80 - Step 6: Final answer
x = 322,946,138.70
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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.