Finding the Fourth Proportional to 212,097,358.48, 292,689,764.55 and 122,793,068.26
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Solution
The fourth proportional to 212,097,358.48, 292,689,764.55 and 122,793,068.26 is: 169,451,776.75
Step by Step Solution
- Step 1: Write the proportion equation
212,097,358.48 : 292,689,764.55 = 122,793,068.26 : x - Step 2: Convert to fraction form
212,097,358.48/292,689,764.55 = 122,793,068.26/x - Step 3: Cross multiply
212,097,358.48x = 292,689,764.55 × 122,793,068.26 - Step 4: Simplify right side
212,097,358.48x = 35,940,274,237,391,480 - Step 5: Solve for x
x = 35,940,274,237,391,480/212,097,358.48 - Step 6: Final answer
x = 169,451,776.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.