Finding the Fourth Proportional to 402,840,028.90, 604,260,043.35 and 211,338,921.70
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Solution
The fourth proportional to 402,840,028.90, 604,260,043.35 and 211,338,921.70 is: 317,008,382.55
Step by Step Solution
- Step 1: Write the proportion equation
402,840,028.90 : 604,260,043.35 = 211,338,921.70 : x - Step 2: Convert to fraction form
402,840,028.90/604,260,043.35 = 211,338,921.70/x - Step 3: Cross multiply
402,840,028.90x = 604,260,043.35 × 211,338,921.70 - Step 4: Simplify right side
402,840,028.90x = 127,703,665,987,984,256 - Step 5: Solve for x
x = 127,703,665,987,984,256/402,840,028.90 - Step 6: Final answer
x = 317,008,382.55
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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.