Finding the Fourth Proportional to 352,579,246.20, 528,868,869.30 and 313,276,231.80
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Solution
The fourth proportional to 352,579,246.20, 528,868,869.30 and 313,276,231.80 is: 469,914,347.70
Step by Step Solution
- Step 1: Write the proportion equation
352,579,246.20 : 528,868,869.30 = 313,276,231.80 : x - Step 2: Convert to fraction form
352,579,246.20/528,868,869.30 = 313,276,231.80/x - Step 3: Cross multiply
352,579,246.20x = 528,868,869.30 × 313,276,231.80 - Step 4: Simplify right side
352,579,246.20x = 165,682,046,490,630,720 - Step 5: Solve for x
x = 165,682,046,490,630,720/352,579,246.20 - Step 6: Final answer
x = 469,914,347.70
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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.