Finding the Fourth Proportional to 7,057,497.80, 10,586,246.70 and 6,406,646.60
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Solution
The fourth proportional to 7,057,497.80, 10,586,246.70 and 6,406,646.60 is: 9,609,969.90
Step by Step Solution
- Step 1: Write the proportion equation
7,057,497.80 : 10,586,246.70 = 6,406,646.60 : x - Step 2: Convert to fraction form
7,057,497.80/10,586,246.70 = 6,406,646.60/x - Step 3: Cross multiply
7,057,497.80x = 10,586,246.70 × 6,406,646.60 - Step 4: Simplify right side
7,057,497.80x = 67,822,341,427,316.21 - Step 5: Solve for x
x = 67,822,341,427,316.21/7,057,497.80 - Step 6: Final answer
x = 9,609,969.90
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Double scale
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Similar ratio
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1.5x scale
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.