Finding the Fourth Proportional to 398,784,137.80, 598,176,206.70 and 183,793,289.80
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Solution
The fourth proportional to 398,784,137.80, 598,176,206.70 and 183,793,289.80 is: 275,689,934.70
Step by Step Solution
- Step 1: Write the proportion equation
398,784,137.80 : 598,176,206.70 = 183,793,289.80 : x - Step 2: Convert to fraction form
398,784,137.80/598,176,206.70 = 183,793,289.80/x - Step 3: Cross multiply
398,784,137.80x = 598,176,206.70 × 183,793,289.80 - Step 4: Simplify right side
398,784,137.80x = 109,940,772,909,477,824 - Step 5: Solve for x
x = 109,940,772,909,477,824/398,784,137.80 - Step 6: Final answer
x = 275,689,934.70
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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.