Finding the Fourth Proportional to 5,124,702.70, 7,071,812.16 and 2,832,715.75
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Solution
The fourth proportional to 5,124,702.70, 7,071,812.16 and 2,832,715.75 is: 3,908,994.31
Step by Step Solution
- Step 1: Write the proportion equation
5,124,702.70 : 7,071,812.16 = 2,832,715.75 : x - Step 2: Convert to fraction form
5,124,702.70/7,071,812.16 = 2,832,715.75/x - Step 3: Cross multiply
5,124,702.70x = 7,071,812.16 × 2,832,715.75 - Step 4: Simplify right side
5,124,702.70x = 20,032,433,686,673.52 - Step 5: Solve for x
x = 20,032,433,686,673.52/5,124,702.70 - Step 6: Final answer
x = 3,908,994.31
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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.