Finding the Fourth Proportional to 403,103,412.20, 604,207,220.70 and 221,480,935.40
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Solution
The fourth proportional to 403,103,412.20, 604,207,220.70 and 221,480,935.40 is: 331,975,310.47
Step by Step Solution
- Step 1: Write the proportion equation
403,103,412.20 : 604,207,220.70 = 221,480,935.40 : x - Step 2: Convert to fraction form
403,103,412.20/604,207,220.70 = 221,480,935.40/x - Step 3: Cross multiply
403,103,412.20x = 604,207,220.70 × 221,480,935.40 - Step 4: Simplify right side
403,103,412.20x = 133,820,380,416,070,256 - Step 5: Solve for x
x = 133,820,380,416,070,256/403,103,412.20 - Step 6: Final answer
x = 331,975,310.47
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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.