Finding the Fourth Proportional to 398,641,347.80, 597,962,021.70 and 353,291,715.80
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Solution
The fourth proportional to 398,641,347.80, 597,962,021.70 and 353,291,715.80 is: 529,937,573.70
Step by Step Solution
- Step 1: Write the proportion equation
398,641,347.80 : 597,962,021.70 = 353,291,715.80 : x - Step 2: Convert to fraction form
398,641,347.80/597,962,021.70 = 353,291,715.80/x - Step 3: Cross multiply
398,641,347.80x = 597,962,021.70 × 353,291,715.80 - Step 4: Simplify right side
398,641,347.80x = 211,255,028,629,629,856 - Step 5: Solve for x
x = 211,255,028,629,629,856/398,641,347.80 - Step 6: Final answer
x = 529,937,573.70
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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.