Finding the Fourth Proportional to 283,101,349.92, 390,478,619.60 and 188,968,036.24
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Solution
The fourth proportional to 283,101,349.92, 390,478,619.60 and 188,968,036.24 is: 260,641,561.62
Step by Step Solution
- Step 1: Write the proportion equation
283,101,349.92 : 390,478,619.60 = 188,968,036.24 : x - Step 2: Convert to fraction form
283,101,349.92/390,478,619.60 = 188,968,036.24/x - Step 3: Cross multiply
283,101,349.92x = 390,478,619.60 × 188,968,036.24 - Step 4: Simplify right side
283,101,349.92x = 73,787,977,939,517,984 - Step 5: Solve for x
x = 73,787,977,939,517,984/283,101,349.92 - Step 6: Final answer
x = 260,641,561.62
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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.