Finding the Fourth Proportional to 5,134,434.48, 7,085,237.76 and 2,810,877.12
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Solution
The fourth proportional to 5,134,434.48, 7,085,237.76 and 2,810,877.12 is: 3,878,856.14
Step by Step Solution
- Step 1: Write the proportion equation
5,134,434.48 : 7,085,237.76 = 2,810,877.12 : x - Step 2: Convert to fraction form
5,134,434.48/7,085,237.76 = 2,810,877.12/x - Step 3: Cross multiply
5,134,434.48x = 7,085,237.76 × 2,810,877.12 - Step 4: Simplify right side
5,134,434.48x = 19,915,732,709,344.05 - Step 5: Solve for x
x = 19,915,732,709,344.05/5,134,434.48 - Step 6: Final answer
x = 3,878,856.14
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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.