Finding the Fourth Proportional to 442,869,107.80, 664,303,661.70 and 417,359,939.80
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Solution
The fourth proportional to 442,869,107.80, 664,303,661.70 and 417,359,939.80 is: 626,039,909.70
Step by Step Solution
- Step 1: Write the proportion equation
442,869,107.80 : 664,303,661.70 = 417,359,939.80 : x - Step 2: Convert to fraction form
442,869,107.80/664,303,661.70 = 417,359,939.80/x - Step 3: Cross multiply
442,869,107.80x = 664,303,661.70 × 417,359,939.80 - Step 4: Simplify right side
442,869,107.80x = 277,253,736,256,031,584 - Step 5: Solve for x
x = 277,253,736,256,031,584/442,869,107.80 - Step 6: Final answer
x = 626,039,909.70
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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.