Finding the Fourth Proportional to 398,604,898.20, 597,907,347.30 and 295,292,767.80
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Solution
The fourth proportional to 398,604,898.20, 597,907,347.30 and 295,292,767.80 is: 442,939,151.70
Step by Step Solution
- Step 1: Write the proportion equation
398,604,898.20 : 597,907,347.30 = 295,292,767.80 : x - Step 2: Convert to fraction form
398,604,898.20/597,907,347.30 = 295,292,767.80/x - Step 3: Cross multiply
398,604,898.20x = 597,907,347.30 × 295,292,767.80 - Step 4: Simplify right side
398,604,898.20x = 176,557,715,472,172,864 - Step 5: Solve for x
x = 176,557,715,472,172,864/398,604,898.20 - Step 6: Final answer
x = 442,939,151.70
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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.