Finding the Fourth Proportional to 436,723,477.20, 655,085,215.80 and 396,412,693.20
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Solution
The fourth proportional to 436,723,477.20, 655,085,215.80 and 396,412,693.20 is: 594,619,039.80
Step by Step Solution
- Step 1: Write the proportion equation
436,723,477.20 : 655,085,215.80 = 396,412,693.20 : x - Step 2: Convert to fraction form
436,723,477.20/655,085,215.80 = 396,412,693.20/x - Step 3: Cross multiply
436,723,477.20x = 655,085,215.80 × 396,412,693.20 - Step 4: Simplify right side
436,723,477.20x = 259,684,094,670,781,152 - Step 5: Solve for x
x = 259,684,094,670,781,152/436,723,477.20 - Step 6: Final answer
x = 594,619,039.80
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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.