Finding the Fourth Proportional to 292,413,999.20, 438,620,998.80 and 246,497,496.80
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Solution
The fourth proportional to 292,413,999.20, 438,620,998.80 and 246,497,496.80 is: 369,746,245.20
Step by Step Solution
- Step 1: Write the proportion equation
292,413,999.20 : 438,620,998.80 = 246,497,496.80 : x - Step 2: Convert to fraction form
292,413,999.20/438,620,998.80 = 246,497,496.80/x - Step 3: Cross multiply
292,413,999.20x = 438,620,998.80 × 246,497,496.80 - Step 4: Simplify right side
292,413,999.20x = 108,118,978,248,115,808 - Step 5: Solve for x
x = 108,118,978,248,115,808/292,413,999.20 - Step 6: Final answer
x = 369,746,245.20
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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.