Finding the Fourth Proportional to 5,731,720.77, 7,909,774.36 and 3,153,346.19
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Solution
The fourth proportional to 5,731,720.77, 7,909,774.36 and 3,153,346.19 is: 4,351,617.58
Step by Step Solution
- Step 1: Write the proportion equation
5,731,720.77 : 7,909,774.36 = 3,153,346.19 : x - Step 2: Convert to fraction form
5,731,720.77/7,909,774.36 = 3,153,346.19/x - Step 3: Cross multiply
5,731,720.77x = 7,909,774.36 × 3,153,346.19 - Step 4: Simplify right side
5,731,720.77x = 24,942,256,841,865.69 - Step 5: Solve for x
x = 24,942,256,841,865.69/5,731,720.77 - Step 6: Final answer
x = 4,351,617.58
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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.