Finding the Fourth Proportional to 5,656,316.78, 7,805,881.41 and 3,078,163.82
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Solution
The fourth proportional to 5,656,316.78, 7,805,881.41 and 3,078,163.82 is: 4,247,955.46
Step by Step Solution
- Step 1: Write the proportion equation
5,656,316.78 : 7,805,881.41 = 3,078,163.82 : x - Step 2: Convert to fraction form
5,656,316.78/7,805,881.41 = 3,078,163.82/x - Step 3: Cross multiply
5,656,316.78x = 7,805,881.41 × 3,078,163.82 - Step 4: Simplify right side
5,656,316.78x = 24,027,781,739,472.59 - Step 5: Solve for x
x = 24,027,781,739,472.59/5,656,316.78 - Step 6: Final answer
x = 4,247,955.46
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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.