Finding the Fourth Proportional to 647,036,209.20, 970,554,313.80 and 284,239,153.20
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Solution
The fourth proportional to 647,036,209.20, 970,554,313.80 and 284,239,153.20 is: 426,358,729.80
Step by Step Solution
- Step 1: Write the proportion equation
647,036,209.20 : 970,554,313.80 = 284,239,153.20 : x - Step 2: Convert to fraction form
647,036,209.20/970,554,313.80 = 284,239,153.20/x - Step 3: Cross multiply
647,036,209.20x = 970,554,313.80 × 284,239,153.20 - Step 4: Simplify right side
647,036,209.20x = 275,869,536,289,119,040 - Step 5: Solve for x
x = 275,869,536,289,119,040/647,036,209.20 - Step 6: Final answer
x = 426,358,729.80
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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.