Finding the Fourth Proportional to 68,890,740.96, 95,165,918.64 and 65,262,770.40
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Solution
The fourth proportional to 68,890,740.96, 95,165,918.64 and 65,262,770.40 is: 90,154,226.99
Step by Step Solution
- Step 1: Write the proportion equation
68,890,740.96 : 95,165,918.64 = 65,262,770.40 : x - Step 2: Convert to fraction form
68,890,740.96/95,165,918.64 = 65,262,770.40/x - Step 3: Cross multiply
68,890,740.96x = 95,165,918.64 × 65,262,770.40 - Step 4: Simplify right side
68,890,740.96x = 6,210,791,498,107,400 - Step 5: Solve for x
x = 6,210,791,498,107,400/68,890,740.96 - Step 6: Final answer
x = 90,154,226.99
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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.