Finding the Fourth Proportional to 352,207,277.60, 528,310,916.40 and 221,260,215.20
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Solution
The fourth proportional to 352,207,277.60, 528,310,916.40 and 221,260,215.20 is: 331,890,322.80
Step by Step Solution
- Step 1: Write the proportion equation
352,207,277.60 : 528,310,916.40 = 221,260,215.20 : x - Step 2: Convert to fraction form
352,207,277.60/528,310,916.40 = 221,260,215.20/x - Step 3: Cross multiply
352,207,277.60x = 528,310,916.40 × 221,260,215.20 - Step 4: Simplify right side
352,207,277.60x = 116,894,187,055,173,200 - Step 5: Solve for x
x = 116,894,187,055,173,200/352,207,277.60 - Step 6: Final answer
x = 331,890,322.80
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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.