Finding the Fourth Proportional to 453,276,343.80, 679,914,515.70 and 354,640,894.20
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Solution
The fourth proportional to 453,276,343.80, 679,914,515.70 and 354,640,894.20 is: 531,961,341.30
Step by Step Solution
- Step 1: Write the proportion equation
453,276,343.80 : 679,914,515.70 = 354,640,894.20 : x - Step 2: Convert to fraction form
453,276,343.80/679,914,515.70 = 354,640,894.20/x - Step 3: Cross multiply
453,276,343.80x = 679,914,515.70 × 354,640,894.20 - Step 4: Simplify right side
453,276,343.80x = 241,125,491,827,407,936 - Step 5: Solve for x
x = 241,125,491,827,407,936/453,276,343.80 - Step 6: Final answer
x = 531,961,341.30
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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.