Finding the Fourth Proportional to 5,113,980.36, 7,057,462.37 and 2,790,999.99
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Solution
The fourth proportional to 5,113,980.36, 7,057,462.37 and 2,790,999.99 is: 3,851,672.47
Step by Step Solution
- Step 1: Write the proportion equation
5,113,980.36 : 7,057,462.37 = 2,790,999.99 : x - Step 2: Convert to fraction form
5,113,980.36/7,057,462.37 = 2,790,999.99/x - Step 3: Cross multiply
5,113,980.36x = 7,057,462.37 × 2,790,999.99 - Step 4: Simplify right side
5,113,980.36x = 19,697,377,390,140.38 - Step 5: Solve for x
x = 19,697,377,390,140.38/5,113,980.36 - Step 6: Final answer
x = 3,851,672.47
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1.5x scale
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.