Finding the Fourth Proportional to 5,057,778.53, 6,980,371.99 and 3,316,911.95
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Solution
The fourth proportional to 5,057,778.53, 6,980,371.99 and 3,316,911.95 is: 4,577,756.65
Step by Step Solution
- Step 1: Write the proportion equation
5,057,778.53 : 6,980,371.99 = 3,316,911.95 : x - Step 2: Convert to fraction form
5,057,778.53/6,980,371.99 = 3,316,911.95/x - Step 3: Cross multiply
5,057,778.53x = 6,980,371.99 × 3,316,911.95 - Step 4: Simplify right side
5,057,778.53x = 23,153,279,277,368.56 - Step 5: Solve for x
x = 23,153,279,277,368.56/5,057,778.53 - Step 6: Final answer
x = 4,577,756.65
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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.