Finding the Fourth Proportional to 5,731,984.49, 7,910,201.45 and 3,118,503.53
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Solution
The fourth proportional to 5,731,984.49, 7,910,201.45 and 3,118,503.53 is: 4,303,569.08
Step by Step Solution
- Step 1: Write the proportion equation
5,731,984.49 : 7,910,201.45 = 3,118,503.53 : x - Step 2: Convert to fraction form
5,731,984.49/7,910,201.45 = 3,118,503.53/x - Step 3: Cross multiply
5,731,984.49x = 7,910,201.45 × 3,118,503.53 - Step 4: Simplify right side
5,731,984.49x = 24,667,991,172,407.88 - Step 5: Solve for x
x = 24,667,991,172,407.88/5,731,984.49 - Step 6: Final answer
x = 4,303,569.08
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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.