Finding the Fourth Proportional to 112,331,539.60, 168,497,309.40 and 54,860,678.80
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Solution
The fourth proportional to 112,331,539.60, 168,497,309.40 and 54,860,678.80 is: 82,291,018.20
Step by Step Solution
- Step 1: Write the proportion equation
112,331,539.60 : 168,497,309.40 = 54,860,678.80 : x - Step 2: Convert to fraction form
112,331,539.60/168,497,309.40 = 54,860,678.80/x - Step 3: Cross multiply
112,331,539.60x = 168,497,309.40 × 54,860,678.80 - Step 4: Simplify right side
112,331,539.60x = 9,243,876,769,657,620 - Step 5: Solve for x
x = 9,243,876,769,657,620/112,331,539.60 - Step 6: Final answer
x = 82,291,018.20
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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.